Within the metric system all units are based on the number

a. 1.

b. 100.

c. 10.

d. 1000.

The main difference between speed and velocity involves

a. gravity.

b. direction.

c. distance.

d. weight.

The frequency of a sound wave is determined by the?

motorcycle accelerates from rest to a final velocity of 27 m/s in 9 seconds. What is its acceleration?

In the figure, a radar station detects an airplane approaching directly from the east. At first observation, the airplane is at distance d1 = 320 m from the station and at angle θ1 = 31° above the horizon.

Can an object contain heat? Why or why not?

In the 1900s, many farmers replaced their horse-drawn plows with tractors. which of the following describes a cost of this new technology.

A sound wave travels twice as far in neon (Ne) as it does it krypton (Kr) in the same time interval. Both neon and krypton can be treated as monatomic ideal gases. The atomic mass of neon is 20.2 u, and that of krypton is 83.8 u.

A 0.25 kg hockey puck is sliding along the ice with an initial velocity of 5 m/s when a player strikes it with his stick, causing it to reverse its direction and giving it a velocity of 30 m/s.

The physiological aim of drive reduction theory is

You are caring for a person who was involved in an automobile collision. The woman is complaining of pain in her abdomen, nausea and extreme thirst. She also is breathing rapidly. Which of the following would you suspect?

A fountain of water and steam that erupts from the ground