Thu 9 Aug, 2018 04:39 pm - A worker stands on the rook of a 45.0 m high building, which is under construction. He carries a bag of debris and throws it down giving it an initial velocity of 12.0 m/s at an angle 33.0 with the... (view)
Thu 9 Aug, 2018 01:53 pm - A spy satellite completes six revolutions every day in a circular orbit. Determine:
a. The altitude of the satellite above earth’s surface.
b. The speed of the satellite.
(view)
Thu 9 Aug, 2018 01:52 pm - Earth is a spherical body, of radius 6,376 km, which completes a full rotation about its axis in 24.0 h. how long (in hours) should the day on Earth be so that a person at the equator is able to... (view)
Wed 8 Aug, 2018 01:08 pm - A ping pong ball, of mass 2.7 g and diameter 4.0 cm, is dropped from a 15 m high building.
a. Estimate the ball’s terminal velocity.
b. What would be the impact velocity, with the ground... (view)
