Consider a system consisting of two objects initially moving separately. The two objects collide and
stick together. If the objects continue moving after crashing, what can we state about the kinetic energy
and momentum of the system before and after the crash?
A. The kinetic energy of the system has decreased.
The momentum of the system has decreased.
B. The kinetic energy of the system remains constant.
The momentum of the system remains constant.
C. The kinetic energy of the system remains constant.
The momentum of the system has decreased.
D. The kinetic energy of the system has decreased.
The momentum of the system remains constant.
Answers: 1
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The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g
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Point charges q1 = 51 ”c and q2 = â27 ”c are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 ”c placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)
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Consider a system consisting of two objects initially moving separately. The two objects collide and...
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