A toy rocket expels gas at the rate of 3kg/s. What is the initial force exerted on the rocket if it moves with the speed of 300 m/s?

F = d(mv)/dt = m/t x v = (1.30 x 10^3) x (3.00 x 10^4) = 39x10^6 Newtons

Explanation:

conduction, convection, radiation

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.