A flower pot that has a mass of 2 kg and is sitting on a windowsill 30 meters from the ground. How many Joules of energy is this?

Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg

The softest and hardest minerals are: softest hardest

The heliocentric and the geocentric models of the solar system included these central principles