If a full wave rectifier circuit is operating from 50 Hz mains, the fundamental frequency in the ripple will be Hz 50
Hz 70.7
Hz 100
Hz 25

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

What happens to light waves from a star as the star moves away from earth?

Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?