Nitrogen dioxide (NO) is produced from the reaction between Ny and 0,, How many moles of N, are needed to produce s moles of NO2
O A 2 mol
0 2.5 mol
6. I mol
D. 5.5 mol

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?

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?