The law of conservation of energy applies:

A. whenever PE = 0.

B. in isolated systems.

C. in all systems

D. only in open mechanical systems.

What's more likely: an object whose mass is 0, or an object whose weight is 0?

Which type of motor uses a brush and commutator to operate?

Analyze: In the series circuit what characteristic was common throughout the experiment? What changed as you added more light bulbs?

15. Do surface currents affect water temperature, air temperature, or both?

A ball is falling from the second floor balcony to the floor below The KE increases, decreases, or constant The PE increases, decreases, or constant

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

The minimum breaking distance d in feet for a typical vehicle can be modeled with the equation d (v) = 0.045v2, where v is the vehicle's speed in miles per hour.