Conceptual questions about the work-energy theorem. reminder: if your explanation doesn't include a fact, equation, or calculation, it is wrong. you must answer in three sentences or fewer, though equations and diagrams may be used as well (a) an object is attached to a spring. in case a, the spring is compressed by 1 cm. in case b, the spring is compressed by 2 cm. by what factor is the energy stored in the spring greater in case b? a 2-kg object accelerates as a net force acts on it. during the 5 seconds this force acts, the object changes its velocity from 3 m/s east to 7 m/s west 3 ms- seconds later: - 7 m/s a student states: "the change in kinetic energy of this object during these 5 seconds was 40 j, and thus the work done on this object by the net force during this period was also 40 j." what, if anything, is wrong with this statement? if something is wrong, identify it, and explain how to correct it. if this statement is correct, explain why.
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Physics, 21.06.2019 22:30
A-4.60 μc charge is moving at a constant speed of 6.80×105 m/s in the +x−direction relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.
Answers: 3
Physics, 21.06.2019 23:30
Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?
Answers: 1
Physics, 22.06.2019 10:10
Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.
Answers: 1
Physics, 22.06.2019 11:00
Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide? kg • what must the total momentum of the system be after the train cars collide? kg •
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Conceptual questions about the work-energy theorem. reminder: if your explanation doesn't include a...
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