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

Water in the form of a gas is called water vapor and it is a result of the process of water evaporation?

A girl lifts a 160-N load to a height of 1 min 0.5 s. How much power is used to lift the load? A. 320 W B. 80 W C. 32 w D. 160 W

A wave has a frequency of 450 Hz and a wave length of 00.52 m what is the speed of the wave?

A radio wave has a frequency of 1000Hz. What is the energy of the wave?

Which statement best describes frequency and pitch? A. Are opposite of wavelength and velocity B. Is Perceived C. Are the same as wavelength and velocity D. Are never found in a description of the Doppler effect

Your go-cart breaks down right before the end of a race, so you have to push it over the finish line. The go-cart has a mass of 85 kg. a. What is the weight of your go-cart? b. How much force must you apply to give the go-cart an acceleration of 0.

The liquid contained in batteries that conducts electric charge is called the: solution, electrolyte, suspension, colloid

Which term describes the second personality seen in a person with dissociative identity disorder (DID) ? A. ego B. superego C. alter ego D. id

What happens to the partiles of a soild as it becomes a liquid

How was the gravitational constant G first determined