Abaseball is thrown at an angle of 40.0° above
the horizontal. the horizontal component of the
baseball’s initial velocity is 12.0 meters per
second. what is the magnitude of the ball’s initial
velocity?
(1) 7.71 m/s (3) 15.7 m/s
(2) 9.20 m/s (4) 18.7 m/s

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)

Select all the correct answers. which three statements about electromagnetic radiation are true?

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?