Galileo determined that all objects fall to earth with the same acceleration. what is the one requirement for this to be true?   a. the objects must all be dropped at the same time.  b. the objects must all be the same size.  c. the objects must be in free fall.  d. the objects must all have the same mass.

Which terms describe the purpose of antennas on devices that use radio waves? transmit and receivemodify and amplifyamplify and receivemodify and transmit

Does heating a metal wire increase or decrease its electrical resistance? why?

Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.