4. The product of mass and velocity gives a quantity known as

a. momentum b. friction

e. inertia

d velocity

By applying a force of 50N, a pulley system can lift a box with a mass of 20 kg. What is the mechanical advantage of the pulley system?

How many earth's are there in the universe?

If an atom loses an electron, why would the resulting particle have a positive charge?

Select all the correct answers. As a student, what steps can you take to reduce the amount of waste you make? Dispose of products after one use instead of reusing them. Recycle old books, newspapers, and magazines.

Which of the following statements about the discharging of a capacitor through a lightbulb are correct? a) Electrons in the wires flow away from the negative plate, toward the positive plate, reducing the charge on the plates.

Newton's Second law of Motion (F = ma) is one of the basis of forces and motion. How is it very similar to his First law and why is finding the acceleration of the system (the main reason we use it) so important to solving physics and real world

You find out that it takes 2 sec. for the swing to complete one cycle. what is the swing's period and frequency?

Can you chemical change or alter DNA

Give an example in which velocity is zero yet acceleration is not.

A 2,537-kg truck moving at 14 m/s strikes a car waiting at a traffic light, hooking bumpers. The two continue to move together at 8 m/s. What was the mass (in kg) of the struck car