A car engine supplies 2.0 10^3 joules of energy during the 100 seconds it 5 points takes to accelerate the car along a horizontal surface. What is the average
power developed by the car engine while it is accelerating?*
2.0 x 10^1 W
2.0 x 10^4 W
2.0 x 10^3 W
2.0 x 10^2 W

Why is alchemy not considered to be a science ?

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.

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors