47. a baseball catcher throws a ball vertically upward and catches it in the same spot when it returns to his
mitt. at what point in the ball's path does it experience zero velocity and non-zero acceleration at the
same time?
a.
midway on the way up
b.
at the top of its trajectory
c.
the instant it leaves the catcher's hand
d.
the instant before it arrives in the catcher's mitt

More solar radiation is absorbed by earth’s surface than by

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?