During an elbow flexion exercise, the relative angle at the elbow is 118 degrees at 0.67 seconds and 82 degrees at 0.75 seconds. What is the average velocity of the elbow in degrees / seconds?

The sun's light takes 180 seconds to reach the planet Mercury. Which of the following is the correct step to find the distance, in miles, of Mercury from the sun?

Salt dissolves more quickly in water when the water molecules are moving very quickly. In which of these water samples would salt dissolve most slowly? water at 15°C water at 50°C water at 75°C water at 98°C

When you push down on a bicycle pump, but do not let the air escape through the hose, what happens inside?

Susie is measuring the different parts of a transverse wave and recording notes in her journal. Which of the following will she be able to measure using the crest or trough of a single wave? A.

Give an example of an energy conversion that produces an unwanted form of energy?

What produces an electromagnetic wave? A) An oscillating or accelerating electric charge B) An electric charge moving at constant velocity C) A static electric charge D) A magnetic monopole moving at constant velocity

A physics book has a height of 25.8 cm, a width of 20.2 cm, and a thickness of 2.90 cm. (a) What is the density of the physics book if it weighs 20 N? kg/m³ (b) Find the pressure that the physics book exerts on a desktop when the book lies face up.

A 24 volt battery is connected to a 3Ω resistor and a 5Ω resistor in series. What is the current in the circuit?

Two technicians are discussing a problem where the brake pedal travels too far before the vehicle starts to slow. Technician A says that the brakes may be out of adjustment.

What are three types of muscle fibers? A.) smooth, intermediate-twitch, cardiac B.) slow twitch, intermediate twitch, fast twitch C.) smooth, cardiac, skeletal D.) slow twitch, fast twitch, involuntary