Multiple Choice
A popular swinging-balls apparatus consists of an aligned row of identical elastic balls that are suspended by strings so they barely touch each other.When two balls are lifted from one end and released,they strike the row and two balls pop out from the other end.If instead one ball popped out with twice the speed of the two,this would be a violation of conservation of
A) momentum.
B) energy.
C) both of these
D) none of these
Correct Answer:
Verified
Correct Answer:
Verified
Q25: If you find that twice as much
Q26: A flower pot of mass m falls
Q27: A car has a head-on collision with
Q28: Suppose a miracle car has a 100%
Q29: If you do work on an object
Q31: An object may have potential energy because
Q32: An object at rest may also have<br>A)speed.<br>B)velocity.<br>C)momentum.<br>D)kinetic
Q33: A pile driver hits the top of
Q34: A diver who weighs 500 N steps
Q35: How many Joules of energy are in