A 0.5kg ball is about to roll off the edge of a 1.5m tall table. What is its current potential energy?

Aseries circuit consists of a resistor with r = 20 ? , a capacitor with c = 0.01 f, and a decaying battery with e = 300e? 5t. if the initial charge is 0, find the charge as a function of time t

What is a carrier wave and how does it affect what you hear on the radio

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.