A 75 kg person is wearing their seatbelt when they experience a car crash. The seat belt applies a force of 1875 N on the person. If this occurred in 0.8 seconds, what was the initial velocity the person was traveling?

Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j

Aball horizontally thrown from a cliff at 8m/s

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine