Abook is sitting on a shelf that is 3.0 meters off the ground. kinetic energy is found using the formula 1/2 times mass times speed. potential energy is found by taking mass times g times height, with g as the constant, 9.8 m/s squared. what is needed to determine the mechanical energy used to move this book?

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.

If a simple machine reduces the strength of a force, what must be increased?