An archer defending a castle is on a 15.5 m high wall. He shoots an arrow straight down at 22.8 m/s. How much time does it take to reach the ground?

Determine the mechanical energy of this object: 1-kg ball rolls on the ground at 2 m/s A. The ball is on the ground, so the mechanical energy is zero B. 2 J C. 1 J D. 4 J

Which statements accurately describe the motion map check all that apply

Why does a straw look broken viewed in a glass of water?

Which of the following is closer to the glomerulus? A proximal convoluted tubule B. nephron loop C. loop of Henle D. distal convoluted tubule

Which one of the following bodies has only potential energy? a. A ball rolling downhill b. A cat sitting on the fence c. A dog running after a car d. A stone falling from a cliff

The best way to prevent heat exhaustion while exercising is to

The highest frequency radio waves are which type?

When a mass is placed on a spring with a spring constant of 15 newtons per meter, the spring is compressed 0.25 meter. How much elastic potential energy is stored in the spring?

Explain why we see the Milky Way as a faint band of light stretching across the sky.

A piece of plastic tape coated with iron oxide is magnet - ized more in some parts than in others. When the tape is moved past a small coil of wire, what happens in the coil? What is a practical application of this?