a spacecraft covers the last straight stretch of an inter-galactic space race in 2.5 days. During that time, it uses its hyper-drive and speeds up from 65,640 km / h to 120,600 km / h. What acceleration does the hyperdrive allow for?

You are sitting on the beach and wondering about the properties of mechanical waves. describe them in terms of ocean waves.

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative