A racecar driver and his opponent drive around a 14.4 km racetrack. Driver 1 finished a lap with an average speed of 50 m/s. Driver 2 had an average speed of 48 m/s. Driver 2 won the race by...

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.

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.