The mass of one water drop is 0.0008kg and the gravitational field strength is 10n/kg what is its weight

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?

Where do magnetic lines of force enter earth?

Aphase diagram assumes is kept constant.