Which of the following is true about acids? most acids are sour most acids corrode metals every acid contains hydrogen acids have a ph of greater than 7

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?

What is the magnitude of the resultant vector round your answer to the nearest tenth

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is