Amover pushes a 30 kg crate across a level florr with a force of 250 n, but the crate accelerates at a rate of only 5.83 m/s squared because a friction force opposes the crate's motio. what is the magnitude of the force of friction?

Which statement best describes resistance? resistance is a. how well a current will flow in a material and is measured in volts. b. how well a material conducts an electrical charge and is measured in ohms. c. the ability of a material to attract a positive charge to create a current. d. the ability of a material to repel neutral charges and is measured in ohms.

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.