Which devices might use electromagnets? pick all that apply.

1. audio speakers

2. plastic combs

3. trains

4. doorbells

5. revolving chairs

6. cranes

By how much does the pressure of a gas in a rigid vessel decrease when the temperature drops from 0 ∘C to - 1∘C?

Which statement is true with respect to an atom? A.) The electrons remain enclosed in the nucleus of an atom. B.) The atomic mass of an atom depends solely on the number of protons in the nucleus. C.

Which force causes tectonic plates to change at plate boundaries

To determine power, it is necessary to know the A. energy required and the time it takes. B. amount of work and the distance covered. C. amount of work in a given time. D. distance and time it takes to do work.

While examining a coolant leak from a weep hole on the side of a Detroit S60 engine, Technician A says the leak is caused by a leaking liner O-ring. Technician B says the coolant leak is due to cavitation of the cylinder block. Who is correct?

3. What is the kinetic energy of a 1300 kg car moving at 26.3 m/s?

Kendall has empty graduated cylinder with markings and an identical graduated cylinder partway filled with water. She also has a balance and a marble. Which statement best describes what Kendall can do? A.

2. With regard to the pH scale, a solution with a pH A. higher than 7 is considered an acid. B. lower than 7 is considered basic. C. of 6 is considered neutral. D. close to 14 is considered a strong base.

If a car rolls gently off a vertical cliff, how long does it take to reach 90km/hr.

In the game of volleyball, what skill relates to Newton's second law