Author Question: A horizontal 52-N force is needed to slide a 50kg box across a flat surface at a constant velocity ... (Read 47 times)

jparksx · **on:** Jul 29, 2018

A horizontal 52-N force is needed to slide a 50kg box across a flat surface at a constant velocity of 3.5 m/s. What is the coefficient of kinetic friction between the box and the floor?

A) 0.11 B) 0.13 C) 0.10 D) 0.09

Question 2

The term dirty bomb refers to

A) a bomb that uses conventional explosive to disperse radioactive materials.
B) a conventional chemical bomb that disperses pieces of metal in order to harm the maximum number of people.
C) a nuclear device that is optimized for the release of radioactive materials.
D) a nuclear device that releases neutrons in order to kill people without harming buildings and other structures.
E) any nuclear device that is used for terrorist purposes.