In the figure below the two blocks are connected by a string of negligible mass passing over a frictionless pulley. m1 = 10.0 kg and m2 = 6.30 kg and the angle of the incline is θ = 41.0°. assume that the incline is smooth. (assume the +x direction is down the incline of the plane.)

(a)
with what acceleration (in m/s2) does the mass m2 move on the incline surface? indicate the direction with the sign of your answer.

(b)
what is the tension in the string in newtons?

(c)
for what value of m1 (in kg) will the system be in equilibrium?

To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field. it is in the opposite direction from that of the original external field. it has a direction determined entirely by the charge on its surface. it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0