Calculate the centripetal acceleration and centripetal force that acts on a 50 kg person going 20 m/s on an amusement park ride that has a radius of 8 meters. calculate the centripetal force on the person

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?