5. Suppose the mechanical advantage of a machine is 4, and the input force is 20 N. What is the output force?

A. 5 N

B. 16 N

C. 80 N

D. 24 N

Omar is attempting to jump across a mud puddle. If he jumps with a velocity of two m/s eastward across the puddle and lands 1.7 seconds later on the other side of the puddle, what is the maximum width the puddle can be so that he crosses safely? A.

What are the contents of the Milky Way Galaxy? (what is in it? be general)

You drop a rock down a well that is 11.5 m deep. How long does it take the rock to hit the bottom of the well?

Plasticity refers to the

Two cars collide at right angles. Car 1 (mass 1,100 kg) is going north with a speed 31 m/s. Car 2 (mass 1,200 kg) is moving east with a speed 19 m/s. The cars stick together after the collision.

o keep yourself warm in the winter, you heat a solid metal ball and place it on a stand in the center of your room. The ball has a radius of 20.0 cm and an emissivity of 0.790.

How many brothers and sisters did beethoven have?

Which of the following statements about igneous rocks is correct?

A rock is thrown off of a 100 foot cliff with an upward velocity of 45 m/s. As a result its height after t seconds is given by the formula?

How much power does a hair dryer require to transform 198000