If you have 100 kg of each of these substances, which would require the most energy to increase its temperature by 25 Kelvin? A. Iron
B. Carbon
C. Rubber
D. Air

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

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

Which quantities are scalars? choose all that apply a. distance b. speed c. acceleration d. velocity