Acar whose mass is 1000 kg is traveling at a constant speed of 10 m/s. neglecting
any friction, how much force will the engine have to supply to keep going the same
speed? (think inertia) (look at the units)

Alightning strike consists of charge moving from a cloud to the ground . in one particular case, the electrons in a lightning strike are confined to travel within a radius of 1.5 m and to move at a speed of 5.0 x 10 m/s. if the density of electrons in the strike is 10'15 electrons/m what current is carried by the lightning ?

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

Calculate the capacitance of a system that stores 2.0 x 10^-10c of charge at 100.0 v. use c=q/v. a. 2.0 x 10^-12 f b. 2.0 x 10^-8 f c. 5.0 x 10^11 f d. 5.0 x 10^7 f