Which of the following must be happening if an object is in uniform circular
motion?
A. The o...
Physics, 30.10.2020 20:00 macylen3900
Which of the following must be happening if an object is in uniform circular
motion?
A. The objects speed must be changing
B. the objects centripetal acceleration must be changing
C. the objects velocity must be changing
D. the objects must be moving in a straight line
Answers: 3
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In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 3
Physics, 22.06.2019 13:30
The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.
Answers: 2
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What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?
Answers: 2
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