A boat is moving at a rate of 15.0 meters per second. Its speed is then decreased uniformly to 3.0 meters per second. It takes 4 seconds for the speed to decrease. What is the magnitude of the deceleration of the car?

A car starts from rest with an acceleration of 2ms-2. At the same time a motor cycle starts with an uniform velocity of 20ms-1 in the same path 84m behind the car. How many times will the vehicles meet during their motion?

What are the two ways to create plasma?

Which one of the following is not an example of work being done

which obstacle to problem solving involves arriving at a solution based on your preconceptions and ignoring any evidence that goes

What are the three main surface features on the moon?

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?

Would the springs inside a bathroom scale be more compressed or less compressed if you weighed yourself in an elevator that was moving upward at constant velocity