A tennis ball is fired from the ground vertically upward with an initial velocity of 29 m/s. The tennis ball arrives at its maximum altitude in 3.0 seconds. Neglecting air resistance, what is the velocity of the ball after 3.0 seconds of the acceleration due to gravity is -9.81 m/s^2

explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

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heat the gas and measure the pressure

the closer the planet is to the sun, the larger the gravity

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.