PRELIMINARY QUESTIONS 1. One of the timing devices Galileo used was his pulse. Drop a rubber ball from a height of about 2 m and try to determine how many pulse beats elapsed before it hits the ground. What was the timing problem that Galileo encountered? 2. Now measure the time it takes for the rubber ball to fall 2 m, using a watch or clock with a second hand or seconds display. Did the results improve substantially? 3. Roll the hard ball down an incline that makes an angle of about 10° with the horizontal. First use your pulse and then your watch or clock to measure the time of descent. 4. Do you think that during Galileo's day it was possible to get useful data for any of these experiments? Why?

PRELIMINARY QUESTIONS 1. One of the timing devices Galileo used was his pulse. Drop a rubber ball from a height of about 2 m and try to determine how many pulse beats elapsed before it hits the ground. What was the timing problem that Galileo encountered? 2. Now measure the time it takes for the rubber ball to fall 2 m, using a watch or clock with a second hand or seconds display. Did the results improve substantially? 3. Roll the hard ball down an incline that makes an angle of about 10° with the horizontal. First use your pulse and then your watch or clock to measure the time of descent. 4. Do you think that during Galileo's day it was possible to get useful data for any of these experiments? Why?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter1: Units And Measurement

Section: Chapter Questions

Problem 1.8CYU: Check Your Understanding A high school track coach has just purchased a new stopwatch. The stopwatch...

See similar textbooks

Similar questions

Check Your Understanding A high school track coach has just purchased a new stopwatch. The stopwatch manual states the stopwatch has an uncertainty of ±0.05 s. Runners on the track coach’s learn regularly clock 100-rn sprints of 11.49 s to 15.01 s. At the school’s last track meet, the first-place sprinter came in at 12.04 s and the second-place sprinter came in a 12.07 s. Will the coach’s new stopwatch be helpful in timing the sprint team? Why or why not?
Consider the equation s=s0+v0t+a0t2/2+j0t3/6+s0t4/24+ct5/120 , were s is a length and t is a time. What are the dimensions and SI units of (a) s0 , (b) v0 , (c) a0 , (d) j0 , (e) s0, and (f) c ?
What are you feeling when you feel your pulse? Measure your pulse rate for 10 s and for 1 min. Is there a factor of 6 difference?
1. The sum of the digits of a 2-digit number is 10. If the number is divided by theunits digit, the quotient is 3 and the remainder is 4. Find the number. 2. t took a certain vehicle 3 hours to travel a distance of 120 km. On its wayback, it took him only 2 hours in traveling the same path. What was his averagespeed?
hi please solve this question . please make sure its correct i just need the answer , in depth answer not required. Please solve both the questions . Just the answers . i will rate
According to Timothy Treadwell in 2001 "Now, the bears I live with average, the males are on average twelve hundred pounds. They're the largest bears in the world and they've been clocked at 41 [mph] and they've run a hundred meter dash in 5.85 seconds which human on stimulants doesn't even approach. a. Compute the speed of a grizzly bear using Mr. Treadwell's hundred-meter statement. b. Compute the momentum of a grizzly bear using the speed you calculated in part a. and the average mass stated by Mr. Treadwell. c. How fast would a 250 lb man have to run to have the same momentum you calculated in part b? d. How fast would a 4000 lb car have to drive to have the same momentum you calculated in part b?
Of the following, the longest is a a. 1.2 miles b. 1610m c. 63350 Inches d. 1760 yards 2 The maximum speed in SLEX is 100 km/H. How many miles will you travel per minute? 3. You are doing a project by mixing some concrete, and you've calculated according to the directions that you need six gallons of water for your mix. If you use the two-liter empty bottle of soda to measure your water, how many times will you need to fill it? 4. The density of seawater is 62.8 pounds/feet. How much is this density in kg/m³ 5. You want to check if the gold ring that your fiancée gave you is a "real gold". Upon weighing. the mass of the ring is 9.5 grams and using the water displacement method to determine the volume, and it overflow 0.6 mL. What is the density of your gold ring? Is the ring a real gold? Accepted density of gold is 19300 kg/m³.
aliavit. ('VIMIUE V LATE) 5. Provide new equation with isolated variable. 6. Substituting values for each of the variables. 7. Solving for the unknown variable. 8. Including units in your answer. ΣF-ma F= HRFN F,=Hmg g=9.8 (downwards) A stationary 25 kg object is located on a table near the surface of the earth. The coefficient of kinetic friction between the surfaces is 0.30. 1. A horizontal force of 300 N is applied to the object. a. Draw a free body diagram with the forces to scale. b. Determine the force of friction.
For the graph shown below answer the following questions. Distance vs. Time 2 ut of 10 6. uestion 王 y 4.8896x 5 4. 0.2 04 0.6 0.8 1.2 1.4 1.6 1.8 Time 2 (s*2) 1. The slope of the graph is m/s² 2. The value of acceleration due to gravity (g) at the place is m/s? Distance (m)
If we find v = A λ, where λ is a length and v is a speed, what are the SI units for A?a.) s-1 b.) m2/sc.) m/s2d.) se.) kg ∙ m/s
8. Below is the table of time and distance traveled by a train Time(min.) Distance (m) 0 0 2 2000 4000 6000 6000 10000 12000 4 6 8 10 12 e. Plot distance against time f. Describe and interpret the graph line Calculate the slope of the line during the first 6 min. and the last 2 min. h. What is the speed between t = 6 min. and t = 8 min.?
question I need help finding out why The equation turns into that answer. it is all in the picture attached and I am studying physics. Just dont know whatis goin on and I am lost.