A70 kg person travels to a planet where he weighs 1,750 n. what is the value of g on that planet?

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)