Which device uses AC current to operate?

A. locomotive train

B. desktop computer

C. car

D. portable media player

E. flashlight

The power of a machine mesures

How is temperature and pressure related to air volume?

An object is launched at 20 m/s from a height of 65 m. The equation for the height (h) in terms of time (t) is given by h (t) = - 4.9t² + 20t + 65. What is the object's maximum height? the numeric answer only, rounded to the nearest meter.

The distance between Miami and Oriando is about 220 miles. A pilot flying from Miami to Orlando start the flight 10 degree off course to avoid a storm.

Similarities between land and sea breezes?

Which of the following statements about Em waves is true? A. Em waves all have the same speed B. Em waves all have the same wavelength C. Em waves only travel through water D. Em waves all have the same amount of energy

A teacher has asked four students to state a scientific theory. Which student is correct?

What are the two main currents that affect the US on the east and west coast?

What role do volcanoes play in the flow of energy and cycling of matter on earth?

How does uniform linear motion differ from uniform circular motion?