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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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2. A spring that has spring constant k = 360 N/m is compressed by x = 9 cm. When the spring is released, all its energy is transferred to a 22 g marble ball.
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If a ski lift raises 150 passengers averaging 690 N in weight to a height of 126 m in 45.9 s, at constant speed, what average power is required of the force making the lift? Number i 270096 eTextbook and Media Units W
1. A roller-coaster car with a mass of 1200 kg starts at rest from a point 20 m above the ground. At point B, it is 9 m above the ground. [Express your answers in kilojoules (kJ).] a. What is the initial potential energy of the car? b. What is the potential energy at point B? c. If the initial kinetic energy was zero and the work done against friction between the starting point and point B is 40 000 J (40 kJ), what is the kinetic energy of the car at point B 2. The time required for one complete cycle of a mass oscillating at the end of a spring is 0.80 s. What is the frequency of oscillation?
The potential energy of an interaction is given by U(x)=ax², where a = +6.4 J/m². Initial speed of a 0.79-kg object in this system is 2.63 m/s at x = 0. A. How far does the object travel before it reaches a speed of v = 0? Express your answer with the appropriate units. B. Does your answer in the previous part depend on whether the object is traveling in the positive or negative direction? Yes, the answer in the previous part is for the object traveling in the negative x� direction, the distance for the object traveling in the positive x� direction is greater than the obtained result. Yes, the answer in the previous part is for the object traveling in the positive x� direction, the distance for the object traveling in the negative x� direction is greater than the obtained result. No, it does not depend on whether the object is traveling in the positive or negative x� direction.
ehman Collec X The Division o Lehman Collec X Lehman Collec X Office of the R x A session.masteringphysics.com/myct/itemView?assignmentProblemID=135511211&offset=next Apps (1) N PQ. YouTube to MP3 Co.. phone cover for mo... AGARWAL-PHY-166 W5 m 11 Part A By how much does the gravitational potential energy of a 59-kg pole vaulter change if her center of mass rises about 4.0 m during the jump? Express your answer to two significant figures and include the appropriate units. HA APEC- Value Units Submit Request Answer rovide Feedback
A 1.85 kg book is sliding along a rough horizontal surface. At point A it is moving at 3.50 m/s, and at point B it has slowed to 1.45 m/s. 1. If -0.700 J of work is done on the book from B to C, how fast is it moving at point C? 2. How fast would it be moving at C if 0.700 J of work were done on it from B to C?
A 15 kg crate has potential energy of 225j. How high is the crate lifted? Use g= 9.8m/s^2. DONT round your answer and choose one correct answer with the correct unit of measure. a. 22.9591 m b. 0.6533 m c. 1.53061 m d. 15.3061 m
Situation 02. A crate has a mass of 120kg and the coefficient of static and kinetic friction is 0.60 and 0.50, respectively. The crate starts from rest and the motor exerts a tension T= 1220 + 200t (N). If the elevation of the dock is 30 degrees from the horizontal, a. What is the velocity of the crate after 1sec? b. Compute the power transmitted after 1sec.
ma (m=56.2 kg) is traveling at a speed of 12.8 m/s at the top of a 19.5-m highroller coaster loop.a. Determine Ima's kinetic energy at the top of the loop.b. Determine Ima's potential energy at the top of the loop.c. Assuming negligible losses of energy due to friction and air resistance,determine Ima's total mechanical energy at the bottom of the loop (h=0m).d. Determine Ima's speed at the bottom of the loop.*only answer d

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Collec X session.masteringphysics.com/myct/itemView?assignmentProblemID3135511215&offset3Dne Apps & YouTube to MP3 Co... phone cover for mo... AGARWAL-PHY-166