if the input force on a wheel and axle is 2 N and the output force is 20N what is its mechanical advantage

True or false Valuable, rare minerals known as titanium are often used in jewelry

A camera with a 50.0-mm focal length lens is being used to photograph a person standing 3.00 m away. if the film is 36.0 mm high, what fraction of a 1.75-m-tall person will fit on it?

A 9V battery is directly connected to each of 3 LED bulbs. Select the statement that accurately describes this circuit. A) A direct current is flowing through the bulbs using a series circuit so each bulb has the same current.

Which of the following is of particular interest to scientists in their observations because of potential threats to the Earth? Meteors Dust Comets Near Earth Objects (NEOs)

a = v1-v2/t equation is the equation for calculating the acceleration of an object. Write out the relationship shown in the equation, using words.

What's the net force acting on an 18-kg object if an acceleration of 3.0 m/s2 is produced?

What type of force slows you down as you slide across the floor? A. Strong nuclear force B. Friction C. Magnetic force D. Gravity

Scenario A: A ramp is used to lift a refrigerator a height of 12 m with a force of 110 N. The ramp is at an angle of 50° to the ground. Scenario B: A ramp is used to lift a refrigerator a height of 13 m with a force of 120 N.

The sun is 30 degrees above the horizon. it makes a 51 m long shadow of a tall tree. part a how high is the tree?

What can destroy stuff yet does not have any mass