Horizons: Exploring the Universe (MindTap Course List)
Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 19, Problem 3RQ

Why are there no chondrules in achondritic meteorites?

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Two billiard balls, A and B, of equal mass (150 g) move at right angles and meet at the origin of an xy coordinate system. Initially, ball A is moving along the y axis at +2.0 m/s, and ball B is moving to the right along the x axis with speed +3.7 m/s. Both balls collide and after the collision, the second ball, B, moved along the positive y axis. (a) What is the final direction of ball A? (b) What are the speeds of the two balls after the collision? (c) Considering the balls to be an isolated system, what is the net impulsive force resulting from the collision if the impact lasted for 0.4 sec? (d) Does your answer to part c make sense, explain? +y VB=3.7 m/s B V 'B B VA-2 m/s A +x
In order to convert a tough split in bowling, it is necessary to strike the pin a glancing blow as shown. Assume that the bowling ball, initially traveling at 13.0 m/s, has five times the mass of a pin and that the pin goes off at 75° from the original direction of the ball. Calculate the speed (a) of the pin and (b) of the ball just after collision, and (c) calculate the angle, 0, through which the ball was deflected. Assume the collision is elastic and ignore any spin of the ball. M
A bullet of mass m moving with velocity v strikes and becomes embedded at the edge of a cylinder of mass M and radius Ro, as shown. The cylinder, initially at rest, begins to rotate about its symmetry axis, which remains fixed in position. Assume no frictional torque. (a) What is the total moment of inertia after the collision? (b) What is the angular velocity of the cylinder after this collision? (c) Is kinetic energy conserved (ignore the motion of the cylinder's center of mass)? (d) Assume that the cylinder rotated for t sec before coming to a stop, what is the angular acceleration of its motion? (e) What is the toque resulting from the force of impact which caused the rotation? Icyl = 0.5 M Ro² 120 m M
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