21. An experiment consist of throwing ball straight up with varying initial velocities. Which quantity willhave the same value in all trials?a. initial momentumb. maximum hieghtc. Time traveld. acceleration22. Compared to the inertia of a 1-kilogram mass, the inertia of a 4 kilograms mass isa. One-fourth as greatc. 16 times as greatb. One-sixteenth as greatd. 4 times as great23. As the mass of an object decreases, it's inertia will. Asa. decreaseb. remain the samec. Increased. None of these24. If the mass of a moving object could be doubled, the inertia of the object would bea. halvedb. doubledc. unchangedd. quadrupled25. The fundamental units for a force of 1 Newton area. meter per second?b. kilogramsc. meter per second? per kilogramd. kilogram meters per second ?

The ball experiences only gravitational force. That means the acceleration of the ball is constant.…

Answered: 21. An experiment consist of throwing…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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©20. A railroad freight yard switch engine on a straight track trav- els 1000. m to the end of the track, then back 600. m, then forward 300. m. a. What is the switch engine's final displacement from its starting position? b. How far did it travel?
A truck moves with a speed of 92 mi/h. how much is this speed in S.I. units? (1 mile = 1.609 km ) O a. 25.56 m/s O b. 205.84 m/s O c. 41.12 km/h O d. 41.12 m/s
1. Consider the following physical quantities and determine which physical quantity of interest they represent: velocity, speed, or acceleration a. 980 m/s² b. 30 m/s-sur c. 30 m/s 2. Represents a vector quantity: a. 8 centimeter b. 100 meters wwmmm c. 100 meter, north d. 30 meters/seconds
The speed of a Vehicle is 114 km/h. How much is this speed in S.I. units? a. 255.07 m/s O b. 410.40 m/s O c. 50.95 m/s O d. 31.67 m/s
2. Suppose you throw an object from a great height, so that it reaches very nearly terminal velocity by time it hits the ground. By measuring the impact, you determine that this terminal velocity is -49 m/sec. A. Write the equation representing the velocity v() of the object at time i seconds given the initial velocity vo and the fact that acceleration due to gravity is -9.8 m/sec2. (Here, assume you're modeling the falling body with the differential equation d = g- kv, and use the resulting formula for v(0) found in the Tutorial. Of course, you can derive it if you'd like.) B. Determine the value of k, the "continuous percentage growth rate" from the velocity equation, by utilizing the information given concerning the terminal velocity. C. Using the value of k you derived above, at what velocity must the object be thrown upward if you want it to reach its peak height after 3 sec? Approximate your solution to three decimal places, and justify your answer.
a. 0.400 m/s2b. 0.555 m/s2c. 0.308 m/s2d. 0.385 m/s2
A football player makes a touchdown run of 100 yards in a time of 1.5 seconds. What is the av.speed in m/s during his run? ( 1 yard = 0.9144 meters) DON'T ROUND YOUR ANSWER. a. 60.96 m/s b. 1.3716 m/s c. 0.6096 m/s d. 137.16 m/s
A volcano ejects a chunk of rock straight up at a velocity of vy = 30 m/s. Ignoring air resistance, what will be the velocity vy of the rock when itfalls back into the volcano’s crater?A. > 30 m/s B. 30 m/s C. 0 m/s D. -30 m/s E. < -30 m/s
A ball is thrown straight upward from the ground level. Its initial velocity is 30 m/s. 1. What is the maximum height it reaches in meters? a. 13.98 b. 45.87 c. 10.38 d. None of these 2. What is the total time in seconds when it goes back in the ground? a. 3 b. 6 c. 4 d. None of these 3. What is its velocity in m/s when time is 2 seconds? a. 10.38 b. 20.19 c. 28.00 d. None of these 4. What is the location of the ball in meters from the ground after 2 seconds? a. 50.19 b. 79.62 c. 40.38 d. None of these
A ball dropped from a height of 30 cm, takes 0.6067 s to reach the ground. What is the acceleration due to gravity (g) at that place in S.I. units ? Select one: O a. 163 O b. 1.63 Oc. 9.8 O d. 0.988 The time of fall (t) of a free falling object is directly proportional to the height (h)
3. A jet plane has a takeoff speed of Vtakeoff = 60 m/s and can move along the runway at an average acceleration of 2.0 m/s?. The runway is 1.5 km. a. Write out the 3 Kinetic equations. b. Write out the values of initial position, initial velocity, and acceleration. c. How many seconds will it take for the plane to reach takeoff speed? d. How far will the plane have to travel to get to takeoff speed? e. will the plane be able to get to 69 m/s before it gets to the end of the runway?
A rock is dropped from the top of a building. Rock starts from rest and it takes 7 seconds to reach the ground. How far did the rock travel in 7 seonds. Ignore air drag and friction. Use g =9.8m/s2. (Don't round your answer). Choose correct answer with the correct unit. A. 240.1 m/s B. 240.1 m C. 34.3 m/s D. 34.3 m

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