What quantity is multiplied by the hydraulic lift system of a dump truck? a. force b. speed c. pressure d. distance

Apiano tuner uses a tuner to create a tone of 5.00 x 10² hz. when a key on the piano is struck he hears 5 beats per second. what is a possible frequency of vibration for the piano string? 2500 hz 1300 hz 605 hz 495 hz

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?