Which statement about thermal energy is true?

thermal energy is a measure of a substance's specific heat.

thermal energy is a measure of a substance's vaporization.

thermal energy is a measure of the movement of a substance's molecules.

thermal energy is the same as a substance's temperature.

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Which of the following is the best name for mgcl2

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