At the Earth's surface a 800 kg projectile is launched straight up at a speed of 9.00 km/s. Ignore air resistance and the rotation of the Earth a. What is the projectile's total mechanical energy at Earth's surface? J b. What is the projectile's maximum height (measured from the Earth's surface)? km c. How much work was done by the gravitational field as the projectile moved from the surface to its maximum height? J d. True/False: The projectile's maximum height depends on the projectile's mass? True

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.

Less force and energy was applied