Usable energy is lost each time energy is converted to another form of energy.

true or false

The gravitational force F exerted by the earth on an object having a mass of 100 kg is given by the equation F = 4,000,000 d2 where d is the distance (in km) of the object from the center of the earth, and the force F is measured in newtons (N).

Whats the measure of how much energy a sound wave carries, the loudness of a sound?

What's an impure potassium carbonate

A resistor and an inductor are connected in series to a battery with emf 240 V and negligible internal resistance. The circuit is completed at time t=0. At a later time t=T the current is 3.00 A and is increasing at a rate of 20.0 A/s.

Vf2 = vi2 + 2ad solve for vi

How would you classify an EM wave with a frequency of 10 7 Hz

A charge of 50 µC is pushed by a force of 25 µN a distance of 15 m in an electric field. What is the electric potential difference?

A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 58.8 m/s^2. The acceleration period lasts for time 8.00 s until the fuel is exhausted. After that, the rocket is in free fall.

Why are tyres of formula one is different from four wheels drive?

The slope of a velocity versus time graph gives