Physics, 02.07.2019 20:00 ronniethefun
Which of the following best describes the difference between speed and acceleration? a. speed is the distance an object travels within a specific unit of time, whereas acceleration is a measure of the force necessary to change the speed of an object. b. acceleration is the distance an object travels within a specific unit of time, whereas speed is a measure of the force necessary to change the acceleration of an object. c. speed is the distance an object travels within a specific unit of time, whereas acceleration is the rate at which the speed or direction of an object is changing. d. acceleration is the distance an object travels within a specific unit of time, whereas speed is the rate at which the acceleration or direction of an object is changing.
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Physics, 22.06.2019 11:00
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
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Physics, 22.06.2019 20:50
In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.
Answers: 3
Which of the following best describes the difference between speed and acceleration? a. speed is t...
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