Ahollow steel shaft is to transmit 4200 n. m of torque and is to be sized so that the torsional stress does not exceed 120 mpa

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?