Quiz

2. In any energy transformation, energy is

A destroyed

B created

C conserved

ms 90%

What is the circulatory system responsible for

How is chewing food both chemical and physical?

When a light beam reflects from a plane mirror, how do you measure the angle of incidence

A rock is placed in a graduated cylinder containing water, and the cylinder is covered to avoid evaporation. The next morning the water level has dropped by 5.65 ml. No one has to the cylinder, and the cylinder has no leaks.

Which of the following has the most mass? A hot air balloon 20 bowling balls A canoe 30 ounces of lead

A 15.0 volt storage battery is connected to three resistors, 7.75?, 15.5?, and 21.7?, respectively. the resistors are joined in series. what is the current in the circuit?

3. When driving a car, the chemical energy in gasoline is converted to heat (thermal energy) in the engine. Most of this thermal energy is then converted to mechanical energy, which makes the car move. What happens to the rest of the thermal energy?

Does aliens exist in this world

An olympic sprinter can go from a state of rest to 11 meters per second in 10 seconds. What is the sprinter's average acceleration?

If a construction worker drops a wrench from the top of a building 375 feet high the wrench will be s (t) = - 16t2 + 375 feet above the ground after t seconds. Determine the velocity of the wrench 4 seonds after it was was dropped.