. A mass m1 is connected by a light string that passes over a pulley of mass M to a mass m2 sliding on a frictionless incline. There is no slippage between the string and the pulley. The moment of inertia of the pulley is Mr2 . If m1 is 4.0 kg, m2 is 4.0 kg, and M is 4.0 kg, and the angle is 20°, then what is the acceleration of the masses?

The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?

Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.

This battery has a difference in potential energy between the positive terminal and negative terminal which units express this difference in energy