A bullet is fired at 660m/s and strikes a target 200.0 meters away. What is the time of the bullet's flight?

Greg dropped a coin from the h meter tall building. If it takes t seconds to reach the ground, determine the position of the coin at the t/2 seconds

An arc welder provides 250A of current when operating with a voltage of 40V. What is the power required by this welder? Explain your answer.

When we say the sun is rising and the sun is setting, who is the observer? where should the observer be to see that the sun does not move around the earth every 24 hours?

A child pulls a 15 kg sled containing a 5 kg dog along a straight force of 55 N on the sled at an angle of 20° above coefficient of friction between the sled and the ground is 0.

True or False if something was turn to make something is it a chemical reaction

3. How is electric potential different than electric potential energy?

Ethan pushes a wooden box across a carpet floor then he pushes the same box across a smooth marble floor why does Ethan find it easier to push the box on the marble floor than carpet floor

Let's now apply our equations for the normal modes of open and closed pipes. On a day when the speed of sound is 345 m/s, the fundamental frequency of an open organ pipe is 690 Hz.

Suppose you are an observer standing on the Moon, looking back at Earth. If the moon is in the waxingquarter phase, what phase of the Earth would you see? A. waxing quarter B. full C. new D. waning quarter E. none; the Earth doesn't have phases

How many chromosomes will an elephant's sperm have?