Truck A has a mass of 5000 kg and a velocity of + 5m/s. Explain why we say truck B has a velocity of - 5m/s.

On earth which force is 10 slow an object down

What change will decrease the speed of a sound wave traveling through a gaseous matter? •Replacing the gaseous matter with Liquid •Replacing the gaseous matter with a solid •Decreasing the temperature of the matter •Increasing the temperature of the

Push a notebook or some other object so that it slides across a table or desktop. What force causes the notebook to start moving? What force causes the notebook to stop moving? If you don't know the name of the forces, just describe them.

Name the physical quantity measured by the area under velocity time graph?

At what speed would one need to fire a lead project tile in order for its temperature to rise from 25°C to 36.9°C upon impact on a stationary object

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.