Reaction time calculator

To calculate rate of reaction from a graph, the general formula change in concentration/change in time is used. To find the average rate, find the change in concentration/change in time from the ...The balancing redox reaction calculator automatically balances the chemical equation and indicates where the oxidation and reduction is happening in the chemical reaction. The Redox … cottages for sale in manitoba Instructions: (i) Enter a known reaction temperature (Temperature 1) and time (Time 1) then either: (ii) Enter a new reaction temperature (Temperature 2) and click “Calculate” to give the corresponding new reaction time (Time 2)Reaction Time Test Test your reaction time. Training: You can run this again and again to try and improve your reaction time. Note: Outliers are values that lie outside the typical range. It is fair to exclude those values as, for example, you may have been distracted. Games Index Puzzle Games Elementary Games Number Games Strategy Games joe dispenza meditation youtube In psychomotor learning: Simple components of bodily skills In the laboratory, a subject’s reaction time is measured as the time between the presentation of some kind of stimulus and the performer’s initial response. The individual’s speed of reaction depends upon a number of variables, including the intensity of the stimuli. taurus lucky number today and tomorrow Plan The average rate is given by the change in concentration, [A], divided by the change in time, t. Because A is a reactant, a minus sign is used in the calculation to make the rate a positive quantity. Solve Practice Exercise Use the data in Figure 14.3 to calculate the average rate of appearance of B over the time interval from 0 s to 40 s.On average, a baseball is released approximately 55 feet from home plate, resulting in a reaction time of .44 seconds for the hitter. By comparison, a 70 mph softball, released from an average distance of 37 feet from the plate, will result in 0.35 seconds of reaction time for the batter.Every chemical reaction is run with a certain amount of reactants being converted into products. But sometimes, the reaction stops due to the unavailability of certain reactants after some time. This reactant is considered as the limiting one and can be fetched for any chemical reaction by using our another limiting reactant calculator. yamaha p115Hitters have roughly 0.40 seconds reaction time (typically) to: determine the type of pitch determine if it's a strike or a ball determine the speed of the pitched ball finish the stride and get their foot down get the bat to the ball At first glance, it appears simple to calculate the number of milliseconds that the hitter has to react to a pitch.Your reaction time will be shorter if you are an experienced driver and prepared to act. ... To make an exact calculation, divide the km/h by 3.6.Try this to find your reaction time: Have your friend hold a yardstick from the top so that it is up and down with the bottom several feet above the floor. Your friend may have to stand on a chair to do this. You hold your fingers opposite the 18-inch mark, but don’t touch the stick! what is the best pickleball paddle Flow chemistry specialist Uniqsis, based in Cambridge, UK, and Boston, MA, USA, supplies FlowSyn continuous flow reactors (also known as plug flow reactors, micro flow reactors or microreactors) for pharma and scale up chemistry applicationsFind out the reaction time neglecting other factors. Solution: The stopping distance, S = 0.5 m The reaction time is given as, t 2 = 0.204S t 2 = 0.204 × 0.5 t 2 = 0.102 t = …Try this to find your reaction time: Have your friend hold a yardstick from the top so that it is up and down with the bottom several feet above the floor. Your friend may have to stand on a chair to do this. You hold your fingers opposite the 18-inch mark, but don’t touch the stick! So, 0.02 - 0.0, that's all over the change in time. That's the final time minus the initial time, so that's 2 - 0. So the rate of reaction, the average rate of reaction, would be equal to 0.02 divided by 2, which is 0.01 molar per second. So that's our average rate of reaction from time is equal to 0 to time is equal to 2 seconds.Every chemical reaction is run with a certain amount of reactants being converted into products. But sometimes, the reaction stops due to the unavailability of certain reactants after some time. This reactant is considered as the limiting one and can be fetched for any chemical reaction by using our another limiting reactant calculator. The time to blink an eye is about 150 ms [4], and a world-class sprinter can react within 120 ms of a starting gun [5]. The human auditory reaction time is about 100 ms, and the typical human ...... about 1 second until we have noticed this. The distance you travel during this time is the reaction distance. ... Calculation of the braking distance ... kijiji ontario snowmobile For a pitch traveling 139.33 feet per second, you have 60.5/139.33 = 0.434 seconds. Your fastball reaction time is therefore equal to 0.434 seconds. Tips Most pitchers release the ball about 5 feet in front of the pitching rubber. You need to meet the ball with your bat in front of home plate, which takes off about another 2 1/2 feet.Try this to find your reaction time: Have your friend hold a yardstick from the top so that it is up and down with the bottom several feet above the floor. Your friend may have to stand on a chair to do this. You hold your fingers opposite the 18-inch mark, but don’t touch the stick! Without warning your friend should let go of the yardstick ...Hitters have roughly 0.40 seconds reaction time (typically) to: determine the type of pitch determine if it's a strike or a ball determine the speed of the pitched ball finish the stride and get their foot down get the bat to the ball At first glance, it appears simple to calculate the number of milliseconds that the hitter has to react to a pitch. stradman sophia garcia de leon Calculating reaction time.. [2] 2021/10/25 00:26 Under 20 years old / Elementary school/ Junior high-school student / Very / Purpose of use ... To improve this 'Free fall (time and velocity) Calculator', please fill in questionnaire. Age Under 20 years old 20 years old level 30 years old level 40 years old level 2 bed flats to rent in heaton moor Enter the car's speed in either miles or kilometers per hour and the stopping distance will be calculated. This calculator is based on interpolating or extrapolating the stopping distance data from the British highway code which can be found here.Decimal to Fraction Fraction to Decimal Radians to Degrees Degrees to Radians Hexadecimal Scientific Notation Distance Weight Time. Chemical Reactions Calculator Calculate chemical reactions step-by-step. ... chemical-reaction-calculator. en. image/svg+xml. Related Symbolab blog posts. Practice, practice, practice.Instructions: (i) Enter a known reaction temperature (Temperature 1) and time (Time 1) then either: (ii) Enter a new reaction temperature (Temperature 2) and click “Calculate” to give the corresponding new reaction time (Time 2) council houses to rent in filey 2021. gada 27. apr. ... 44 votes, 11 comments. Me and u/The_ColorOutofSpace built a calculator that you can use to instantly determine the reaction time of your ...Aug 5, 2021 · Reaction time can be defined as the time taken by a human to react or respond to a sudden change or stimulus. When people drive/ride their vehicle on the road, and suddenly an object comes in front of the road, now in order to stop the vehicle, the brain first has to acknowledge the hurdle on the way and warn the body to respond to the danger, the time taken to do this process is nothing but Reaction time. Enter an equation of a chemical reaction and click 'Balance'. The answer will appear below; Always use the upper case for the first character in the element name and the lower case for the second character. Examples: Fe, Au, Co, Br, C, O, N, F. Compare: Co - cobalt and CO - carbon monoxide; To enter an electron into a chemical equation use {-} or e 3 bedroom house for sale london Try this to find your reaction time: Have your friend hold a yardstick from the top so that it is up and down with the bottom several feet above the floor. Your friend may have to stand on a chair to do this. You hold your fingers opposite the 18-inch mark, but don’t touch the stick! Without warning your friend should let go of the yardstick ... A reaction time test is a tool used to capture your reaction It is an amazing tool that is capable enough to measure your reaction time. As the collected data, the average reaction time is 273 milliseconds. In addition, it is an exclusive test that is affected by the latency of your device like PC & monitor. If you want to improve your reaction time, be sure that you are having a fast computer and low latency, it will act greatly.Tips for using the calculator. The corner type feature is best enjoyed with a corner radius in excess of 90 metres and a corner angle in excess of 120 °.The formula we need is: reaction time = square root (distance fallen in centimetres / 490) We know that the ruler fell 14cm before it was caught. So we divide 14 by 490 and take the square root. This gives a result of 0.169. The reaction time was 0.169 seconds, or 169 thousandths of a second. juicy vegas no deposit bonus codes Reaction time depends to some extent on the distance to the obstacle and whether it is approaching from the side and is first seen in peripheral vision. The best estimate is 1.5 seconds for side incursions and perhaps a few tenths of a second faster for straight-ahead obstacles.Chemical reactions, the transformation from one molecular structure to another, are ubiquitous in the world around us. Everything from internal combustion engines and complex manufacturing plants to geological processes and life itself depend on chemical reactions. Use Wolfram|Alpha to balance chemical equations, determine reaction ...PCR Master Mix Calculator Performing calculations for large scale PCR reactions can be cumbersome and tedious. Ensure your success of scaled up reactions by using the PCR Master Mix Calculator. This online tool will calculate the amounts of components needed to create your PCR Master Mix. room to rent erdington no deposit Reaction time calculatorReaction time calculatorReaction time calculatorReaction time calculatorReaction time calculatorReaction time calculatorReaction time...The reaction Time Test is an exciting tool that easily lets you measure your reaction time. You have an opportunity to test your reaction time so use our website to play this game online … ihd3 no wifi option Try this to find your reaction time: Have your friend hold a yardstick from the top so that it is up and down with the bottom several feet above the floor. Your friend may have to stand on a chair to do this. You hold your fingers opposite the 18-inch mark, but don’t touch the stick! Without warning your friend should let go of the yardstick ... Our Chemical Reaction Calculator implements the above algorithm and helps you solve most chemical problems in seconds without resorting to time-consuming calculations. So, the first step in chemical reaction calculations is balancing chemical equations. This means looking for stoichiometric coefficients for the reactants and products.Tempo - (Medido em Segundo) - O tempo é usado para definir o período de tempo necessário para que o reagente forneça uma certa quantidade de produto em uma reação química. Constante de taxa de reação direta - (Medido em 1 por segundo) - A constante de taxa de reação direta é usada para definir a relação entre a concentração molar dos reagentes e a taxa da reação química na ...The time, or more precisely, the duration of the trip, can be calculated knowing the distance and the average speed using the formula: t = d / v where d is the distance travelled, v is the speed (velocity) and t is the time, so you can read it as Time = Distance / Speed. hiccup x astrid arranged marriage fanfic are all ways to boost reaction time in a safe and healthy way. Improving reaction time with practice: Have your class practice with the squishy ball every day for ten or fifteen minutes, for some number of days. Then repeat the yardstick/ ruler experiment, collect data, calculate, and see whose reaction time improves.This calculator allows you to enter any three known parameters and clear the parameters that should be found, and it kindly finds them. Kinematic equations for each set of parameters are listed below the calculator. BTW, by default, the acceleration has the value of gravity constant g, making a free-fall problem. Kinematic Equations CalculatorReaction Time Calculator - JSCalc.io Reaction Time Calculator This calculator takes a drop distance (in centimeters) and tells you how long the object took to drop. Share current values: Powered by JSCalc.io Not the calculator you are looking for? Create Your Free Custom Calculator Try Now Average Distance (cm): Time (s): qbcore golf script This is a simple tool to measure your reaction time. The average (median) reaction time is 273 milliseconds, according to the data collected so far. In addition to measuring your reaction time, this test is affected by the latency of your computer and monitor.How to test your reaction time. Hold the top of the ruler with your arm stretched out. Your fingers should be on the highest measurement. Ask a friend to put their thumb and index finger slightly open at the bottom of the ruler, with the ruler between their fingers. Drop the ruler and record the measurement on the ruler where the other persons ...Time Calculator. Updates: - added mode option to add or subtract times. Mode: add values , subtract values. Input format. To add times, enter times in the left column in the format: when you enter five values: days:hr:min:sec:frames, or. uyghur documentary Enter the temperature at which the reaction takes place. In the row below, indicate the Rate coefficient (k). Input the Frequency factor (A) (or pre-exponential factor). This coefficient does not vary with temperature and is constant for a reaction. The calculator will display the Activation energy (Eₐ) associated with your reaction.Enter the car's speed in either miles or kilometers per hour and the stopping distance will be calculated. This calculator is based on interpolating or extrapolating the stopping distance data from the British highway code which can be found here. the giving tree book Make a series of measurements of your reaction time. • Use statistics to analyze ... to its calculation, but the standard deviation should remain about the.Your reaction time is the amount of time it takes for your brain to process and respond to something it senses. As your partner releases the ruler, light bounces off it and enters your eye, giving visual information about the movement. Your brain receives the information, processes it, and determines how to react.Reaction Time. Alcohol can slow down reflexes, which can decrease the ability to react swiftly to changing situations. Vision. Alcohol can slow down eye's muscle functionality, alter eye movement, and alter visual perception, possibly resulting in blurred vision.Contribute to tinghanlin/reaction-time-calculator development by creating an account on GitHub. xperia relock bootloader 2020. gada 4. maijs ... 2.5 Calculation Procedure. The experimental design consists of three factors (Time, temperature and initial concentration), which allows for the ...The reaction time (ms) is provided as: 500. Finally, calculate the Reaction Distance using the equation above: Dreact = S*5280/3600 * T/1000 The values given above are inserted into the equation below and the solution is …2022. gada 10. jūl. ... Enter the Distance (cm) and select the "Calculate" button to analyse the results. Distance cm, Reaction time seconds, Assessment. Calculations ...Our Chemical Reaction Calculator implements the above algorithm and helps you solve most chemical problems in seconds without resorting to time-consuming calculations. So, the first step in chemical reaction calculations is balancing chemical equations. This means looking for stoichiometric coefficients for the reactants and products.The time to blink an eye is about 150 ms [4], and a world-class sprinter can react within 120 ms of a starting gun [5]. The human auditory reaction time is about 100 ms, and the typical human ... 4dp5dt test For a full time card use a Time Card Calculator. Enter start time and end time without '.' or ':'. If you enter a single integer from 1 through 12 it will assume 1:00 through 12:00. Assumes "12 pm" for noon and "12 am" for midnight. Converting between digital time and decimal hours2020. gada 29. aug. ... The Stop Signal Reaction Time (SSRT) is a latency measurement for the ... This section deals with calculation and comparisons of internal ...2022. gada 28. febr. ... To calculate rate of reaction from a graph, the general formula change in concentration/change in time is used. To find the average rate, find ... coolant above max line when hot The reaction conversion is a measure of the progress of the reaction referring to the limiting reactant. The reaction will indeed not be able to go further once one of the reactant is consumed. The conversion rate of the reaction, based on the limiting reactant (named A hereafter), can then be defined a X A by the following equation :You can set your perception-reaction time to 1.5 seconds. Input the slope of the road. If it is flat, you can just enter 0%. Is the road wet or dry? Let's assume it just rained. With … something went wrong please restart your tread to continue The Arrhenius equation is a formula that describes how the rate of a reaction varied based on temperature, or the rate constant. If we look at the equation that this Arrhenius equation calculator uses, we can try to …To use this online calculator for Time taken for First Order Opposed by First Order Reaction given Initial Concentration of Reactant, enter Forward Reaction Rate Constant (Kf), Concentration of Reactant at Equilibrium (xeqm), Initial Concentration of Reactant A (A0) & Concentration of Product at Time t (x) and hit the calculate button.Savings calculator CIP · Calculation cost savings in phase separation with Baumer CombiLyz AFI · Calculate your savings based on the short reaction time of the ...There are different ways to measure reaction times. One simple method involves dropping a ruler between someone's open thumb and forefinger. 3 bedroom ground floor flats to rent in great yarmouthA first order reaction takes 20 minutes for 25% decomposition. Calculate the time when 75% of the reaction will be completed. Given: log 2= 0.3010 log 3= ...The Arrhenius equation is a formula that describes how the rate of a reaction varied based on temperature, or the rate constant. If we look at the equation that this Arrhenius equation calculator uses, we can try to understand how it works: k = A\cdot \text {e}^ {-\frac {E_ {\text {a}}} {R\cdot T}}, k = A ⋅ e−R⋅T Ea, where: k. atlantic city death This is a simple tool to measure your reaction time. The average (median) reaction time is 273 milliseconds, according to the data collected so far. In addition to measuring your reaction time, this test is affected by the latency of your computer and monitor. Using a fast computer and low latency / high framerate monitor will improve your score. Scores in this test are faster than the aim trainer test, because you can react instantly without moving the cursor. The balancing redox reaction calculator automatically balances the chemical equation and indicates where the oxidation and reduction is happening in the chemical reaction. The Redox equation balancer automatically finds all the reducing and the oxidizing agents in the reaction. ADVERTISEMENT The reduction process: peter alexander pjs It is based on drawing a line through the points in the response at which the value reaches 25% and 75% of its peak value, and then taking the time at which this line crosses the baseline as the reaction time (again we used the average value between 100 ms before and 100 ms after tone onset as the baseline).Aug 5, 2021 · Reaction time can be defined as the time taken by a human to react or respond to a sudden change or stimulus. When people drive/ride their vehicle on the road, and suddenly an object comes in front of the road, now in order to stop the vehicle, the brain first has to acknowledge the hurdle on the way and warn the body to respond to the danger, the time taken to do this process is nothing but Reaction time. julia topless 2018. gada 5. janv. ... You can also use an online calculator to determine reaction times using the drop test. The following website includes an online calculator ...This vignette describes the Stop-Signal Reaction Time integration method (SSRTi); a scoring method introduced by Logan (1981). The scoring function was ...The above calculator uses this ratio to calculate your reaction time difference from an average height person of your gender. The average heights used were for US men and women, 5′3.8″ and 5′9.3″. Given men are on average taller than women, it is no surprise that women have been found to have faster reflexes 3.The reaction time for a driver of a car is calculated based on the present constant velocity of the car and the car's ability to accelerate to a stop. all ethiosat channel frequency 2022 This tool will calculate the amount of time required to accumulate a particular volume at a specified volumetric flow rate. A conversion scale will also appear and reset when any of the input parameters for volume or flow rate are changed. Formula. The volumetric flow rate formula used by this calculator is: t = V / Q.A certain reaction is first order, and 1080s after initiation of the reaction, 32.5% of the reactant remains. Calculate the reaction time so that there will be 20% of the reactant remain? please enter the number of seconds (without unit) with one decimal point.This Chemical Reaction Calculator balances a given chemical equation, computes the amounts of reactants and products, finds limiting reactant Skip to the content. Skip to the primary sidebar. cnc dxf files Reaction Time Test Click Speed Test Click Counter Spacebar Counter Mouse Test Generators Calculators Minecraft Tools Blogs Online Tools Click Per Second Click Per 5 Seconds Click …Hitters have roughly 0.40 seconds reaction time (typically) to: determine the type of pitch determine if it's a strike or a ball determine the speed of the pitched ball finish the stride and get their foot down get the bat to the ball At first glance, it appears simple to calculate the number of milliseconds that the hitter has to react to a pitch. exoduspoint jobs Feb 14, 2020 · It is calculated by the following rule of thumb: Reaction distance = (speed ÷ 10) × 3. At a speed of 100 km/h the reaction distance alone is 30 metres. Examples for the calculation of the reaction distance: Speed in km/h Reaction distance in metres Note: If the reaction time is doubled, the reaction distance is also doubled! Ligation Calculator. This tool will calculate the mass of insert required at several molar insert:vector ratios in the range needed for typical ligation reactions. Ligation. Tutorials. Insert DNA length. Vector DNA length. Vector DNA mass. Required insert DNA mass.Balancing Chemical Equations Calculator & Solver An online balancing chemical equations calculator provides a balanced equation, structure, and equilibrium constant with chemical names and formulas. An online balancing chemical equations calculator provides a balanced equation, structure, and equilibrium constant with chemical names and formulas. Chemical reactions, the transformation from one molecular structure to another, are ubiquitous in the world around us. Everything from internal combustion engines and complex manufacturing plants to geological processes and life itself depend on chemical reactions. Use Wolfram|Alpha to balance chemical equations, determine reaction ...2013. gada 19. febr. ... Stop-signal reaction time calculation. ... The distribution of go reaction is integrated from the time of go signal presentation. steele auto group SSD Calculator. A, B, C, D, E, F, G, H, I, J, K, L, M, N. 1, Stopping Sight Distance Calculator ... 4, t = driver perception-reaction time (seconds) ...Reaction Time Calculator. This calculator takes a drop distance (in centimeters) and tells you how long the object took to drop. Share current values:. can you hug your uncle in islam Steps to use Reaction Rate Calculator:-. Follow the below steps to get output of Reaction Rate Calculator. Step 1: In the input field, enter the required values or functions. Step 2: For output, press the “Submit or Solve” button. Step 3: That’s it Now your window will display the Final Output of your Input. More Online Free Calculator.How to Use Chemical Reaction Calculator? The procedure to use the chemical reaction calculator is as follows: Step 1: Enter the chemical reaction in the input field Step 2: Now click the button “Submit” to get the output Step 3: Finally, the equilibrium constant for the given chemical reaction will be displayed in a new window.Audio vs Visual Reaction Times. Numerous studies (included cited study below) have concluded that the mean auditory reaction time is faster than the mean visual ...How to Use Chemical Reaction Calculator? The procedure to use the chemical reaction calculator is as follows: Step 1: Enter the chemical reaction in the input field Step 2: Now click the button "Submit" to get the output Step 3: Finally, the equilibrium constant for the given chemical reaction will be displayed in a new window.Chemical reactions, the transformation from one molecular structure to another, are ubiquitous in the world around us. Everything from internal combustion engines and complex manufacturing plants to geological processes and life itself depend on chemical reactions. Use Wolfram|Alpha to balance chemical equations, determine reaction ... roblox doors halt sound Find the required amount of reactants: benzene + nitronium -> 0.02 mols nitrobenzene + hydrogen ion copper (II) carbonate -> 1.500 kg copper (II) oxide + CO2 Determine the theoretical yield: 22g NaOH + 16g MgCl2 -> Mg (OH)2 + NaCl Cl2 + 10.0 g Na -> NaCl Compute the percent yield: 0.2 mol CH4 + O2 -> 7 mL H2O + CO2 After this experiment, you will have a table of the time taken for the reaction to go to completion, and the temperature at which the reaction took place. You can calculate the rate of the reaction by taking the reciprocal of time. $$ reaction~rate = \frac{1}{time~taken~by~the~reaction~to~complete} $$Want to get an idea on reaction time for different speeds? Below, are a list of charts that show various pitching metrics that you can use for comparison. While the info below isn't concrete, and can be influenced by many factors, these charts are computed based off of recorded averages and good old fashioned math.Chemical reactions, the transformation from one molecular structure to another, are ubiquitous in the world around us. Everything from internal combustion engines and complex manufacturing plants to geological processes and life itself depend on chemical reactions. Use Wolfram|Alpha to balance chemical equations, determine reaction ... criminology unit 3 ac1.1 So, 0.02 - 0.0, that's all over the change in time. That's the final time minus the initial time, so that's 2 - 0. So the rate of reaction, the average rate of reaction, would be equal to 0.02 divided by 2, which is 0.01 molar per second. So that's our average rate of reaction from time is equal to 0 to time is equal to 2 seconds. Reaction Time Calculator - JSCalc.io Reaction Time Calculator This calculator takes a drop distance (in centimeters) and tells you how long the object took to drop. Share current values: Powered by JSCalc.io Not the calculator you are looking for? Create Your Free Custom Calculator Try Now Average Distance (cm): Time (s):So, 0.02 - 0.0, that's all over the change in time. That's the final time minus the initial time, so that's 2 - 0. So the rate of reaction, the average rate of reaction, would be equal to 0.02 divided by 2, which is 0.01 molar per second. So that's our average rate of reaction from time is equal to 0 to time is equal to 2 seconds. chiltern railways timetable 2018. gada 16. nov. ... Divide the distance from the pitching rubber to home plate by the speed of the fastball in feet per second. On a major league ball field this ... abito greengate reviews CalcProfiHow to Use Chemical Reaction Calculator? The procedure to use the chemical reaction calculator is as follows: Step 1: Enter the chemical reaction in the input field Step 2: Now click the button “Submit” to get the output Step 3: Finally, the equilibrium constant for the given chemical reaction will be displayed in a new window.Download a Baseball Pitch Speed Conversion Chart or Softball Pitch Speed Conversion Chart. These calculators are brought to you by Pocket Radar: Baseball Pitch Speed Conversion Chart: PDF Fastpitch Pitch Speed Conversion Chart: PDF Baseball Pitch Speed Conversion Chart: Excel Fastpitch Pitch Speed Conversion Chart: Excel zoro crying fanfiction Try this to find your reaction time: Have your friend hold a yardstick from the top so that it is up and down with the bottom several feet above the floor. Your friend may have to stand on a chair to do this. You hold your fingers opposite the 18-inch mark, but don’t touch the stick!(iii) Enter a new reaction time (Time 2) and click "Calculate" to give the required temperature (Temperature 2). Notes: Calculations use the Arrhenius equation with a null frequency factor (A) and an Activation Energy (E A ) of 50kJ mol -1 purpose: to measure reaction time, hand-eye quickness and attentiveness. equipment required: 1 meter long ruler or Yardstick, calculator.Our physicists' team constantly create physics calculators, with equations and comprehensive explanations that cover topics from classical motion, thermodynamics, and electromagnetism to astrophysics and even quantum mechanics. Are you having troubles with understanding the laws of physics? telus home security log in