A disk begins rotating from rest with an angular acceleration of α in rad/s. Which of the following equations is correct for the time in seconds it takes for the disk to complete one full rotation? A. t = α/2
B. t = πα
C. t = √(2/α)
D. t = √(2π/α)
E. t = √(4π/α)

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.

Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?