Explain the concept of a wave vector - how it is defined, what are its properties? How can we define the motion of a rigid body? Water beads up on an oily sunbather, but not on her neighbor, whose skin...
Give an example of a situation in which there is a force and a displacement, but the force does no work. Explain why it does no work.Work and Energy.The term physical work is a scalar that links two vector quantities: the for...
The forces are then weaker by a little less than an order of magnitude compared to this characteristic point. The start of the adjustment which is deduced graphically thus seems consistent with our weak field approximation “far from the central point mass” since we are approximately an order ...
Why is it useful to be able to do this in general? Hint: Recall that forces are vectors. Can you find a vector quantity that has a magnitude of zero but components that are not zero? Explain. Consider the two vectors, A and B, in the figure. What wo...
Can momentum be conserved for a system if there are external forces acting on the system? If so, under what conditions? If not, why not? In collision problems, when should you use conservation of momentum and when should you use conservation of energy?