A stone is thrown horizontally from the top of a building an intial speed of 25 m/se. The stone strikes the ground after covering a horizontal distance of 75m. How high is the building? (take g= 10 m/s^2)

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped

The energy of a photon is equal to (what) times (what) of the photon.