College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- 2. An object that has a small mass and an object that has a large mass have the same momentum. Which object has the larger kinetic energy? a. neither, they have the same kinetic energy b. the one with the small mass c. the one with the large massarrow_forward8. An alien egg (6.0 kg) is sitting out in space with nothing else nearby. Suddenly (over 0.2 s) the egg breaks into two pieces and flies apart. One piece is 1.5 kg and flies off toward the left at 3.0 m/s. The other piece flies off at 9.0 m/s to the right. A baby alien is now in the spot where the egg was. Solve everything symbolically until asked to solve numerically a. Symbolically, what is the mass of the piece of egg going to the right? b. Numerically, what is the mass of the piece of egg going to the right? c. Symbolically, what is the mass of the baby alien? d. Numerically, what is the mass of the baby alien?arrow_forwardPls helparrow_forward
- A. В. C. D. 3 kg 3 kg v= 5 m/s 3 kg 3 kg v = 0 m/s v= 2 m/s Above shows an object at different positions. v=-4 m/s Calculate the object's momentum at position A. Round to the nearest whole number. DO NOT include units Point a [A]arrow_forwardAs shown on the right two identical objects have the same mass. They are moving with the same speed but one is going due North and the other is going due East. Which of the following statements is completely correct? North a. East m m V Select one: They both have the same kinetic energies and the same momentum. b. They have different kinetic energies and they have different momentum. OC. They have the same kinetic energies, but they have different momentum. Od. They have different kinetic energies, but they have the same momentum.arrow_forwardIn the middle of a race, three runners have the following speeds and masses. A. 56 kg, 4.5 m/s B. 66 kg, 4.0 m/s C. 87 kg, 2.5 m/s Order the runners from largest linear momentum to smallest linear momentum. (Use only ">" or "=" symbols. Do not include any parentheses around the letters or symbols.)arrow_forward
- How do I solve this questionarrow_forwardcomplete the following 3 steps. 1. Indicate what your chosen system is (which objects are included in the system?) as well as your initial and final instants. Explain how your choice will help you solve the problem. 2. Draw a momentum-impulse bar chart for your chosen system that is consistent with the information given. 3. Write an equation using the bar chart as a guide and solve for any unknowns. A .06 kg tennis ball hits a wall with a velocity of 30 m/s and rebounds at about the same speed. What is the change in momentum of the ball from before the collision to after?arrow_forward8. Martha, whose mass is 42 kg is traveling on her roller blades at 8 m/s, when she collides with Juan, who is also on roller blades, at rest, and has a mass of 60 kg. Assuming that Martha and Juan move together after they collide, what is their velocity after the collision? 9. A 20 kg suitcase is thrown from the top of a 20 meter building with a speed of 8 m/s. a) With what speed will it reach the ground? b) What speed does the suitcase have when it is 5 m above the ground? (Hint: note the suitcase initially has both PE and KE.) (9)arrow_forward
- A 7400 kg truck traveling along a straight road at 14 m/s comes to a stop and remains stationary for several minutes. It then accelerates backward in reverse until it reaches 5.0 m/s in the opposite direction. What is the magnitude of the change in momentum of the truck for this entire process? A. 100,000 kg. m/s B. 140,000 kg. m/s C. 67,000 kgm/s D. 37,000 kgm/s O C O B OD O Aarrow_forwardBefore collision, there are two objects.1st object M1 = 8 kg V1 = 3m/s2nd object M2 = 4 kg V2 = 0 m/s After collision, these two object stick together and move together.What is the speed after the collision?arrow_forwardQuestions 1.-4. refer to a head-on collision between two balls with the following initial values: Before Collision m2 V Ix 3.5 kg 4.5 kg 5.0 m/s -2.0 m/s 1. What is the total momentum (in kg m/s) of the system? 2. If the two balls stick together, what is their common speed (in m/s) after they collide? 3. How much kinetic energy (in joules, positive number) was lost in this collision? 4. If the two balls do not stick together, and the first ball moves at vịx = -1 m/s after they collide, what is the speed (in m/s) of the second ball?arrow_forward
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