. If an object has an initial momentum of 4 kg m/s at 3m/s and its speed is increased to 6m/s, what is its final momentum

What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%

Dc versus ac problem. suppose your dc power supply is set to 15 v and the vertical setting on the oscilloscope is at 5 v/div. how many divisions will the trace deflect if you connect the output of the power supply to the scope with the a input switch set on dc? how many divisions if the switch is on ac?

How does the motion of an airplane compare to the motion of a rocket ?