A box sits on a platform supported by compressed spring. The box has a mass of 1.0 kg. When the spring is released, it does 4.9 I of work on the box, and the box flies upward. What will be the maximum height above the platform reached by the box before it begins to fall?

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

Drag each tile to the correct box. tiles bra i sequence

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