What is a tool that measures the size of a force

In a crash or collision, why is it advantageous for an occupant to extend the time during which the collision is taking place?

A force of 20 N is executed to raise a rock weighing 30 N. What is the actual mechanical advantage?

What is the impulse when a. 200kg ball is struck with a force of 100N for. 1 seconds

Megan is waiting for the school bus. She sees it driving down the street straight toward her position. If the bus is moving at a constant speed, which graph shows the position of the bus relative to Megan through time?

What happens when the moon faces one side of the earth?

The formula for calculating power is work divided by time (power = work : time). What are two ways of stating the same relationship? work = power : time, work = power * time, time = work : power, time = work * power, power = work * time

What does newton's first law predict will happen to a person riding in a car that is moving in circular motion?

One of the main reasons steel is used more widely than iron is because it's lighter softer stronger than iron

What is the frequency of a wave with a velocity of 21.2 m/s and a wavelength of 8.3m?

Positive ions have blank protons than electrons