when a human cannon ball shoots in the air for 9 seconds, she travels 37 meters before ut lands. Caculate the speed​

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

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.