If a. 40kg football is thrown with an acceleration of 1.8m/s^2, what is the force used to throw the football? Question 1 options:.22N 4.5N. 72N 1N

When a sound wave encounters a barrier, what happens?

What particle is used as a beam to treat cancer

True or False Visible light is a kind of electromagnetic wave.

Why do all planets rotate around the sun in the ssame direction

Which best describes the electromagnetic force?

A 30-g bullet is fired with a horizontal velocity of 450 m/s and becomes embedded in block B, which has a mass of 3 kg. After the impact, block B slides on 30-kg carrier C until it impacts the end of the carrier.

11) Shifting with ease from one type of problem-solving strategy to another is called a) flexibility b) versatility c) originality d) openmindedness

A truck undergoes a constant acceleration of 2.0 meters/second2 on a highway that slopes upward at an angle of 30.0° to the horizontal. What is the magnitude of the horizontal component of the acceleration?

Why is there so much more carbon dioxide in the atmosphere of Venus than in that of Earth? Why so much more carbon dioxide than on Mars?

People have proposed driving motors with the earth's magnetic field. This is possible in principle, but the small field means that unrealistically large currents are needed to produce noticeable torques.