A car moves with a velocity 20m/s on a horizontal rough road and cover a displacement of 50m. Find the coefficient of dynamic friction between the car and the road.

Aneutron and a proton combine to form a nucleus. why does the mass of the nucleus differ from the sum of the masses of the individual nucleons?

Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves

The amount of potential energy possessed by an elevated object is equal to what?