Block a which is at rest on a horizontal surface is used to hold block b with a mass of 56 kg in the air at a certain height above the ground the two blocks are connected with rope are which makes an angle of 35 degrees with the vertical block been suspended from the ceiling with cable see what is the magnitude of the resultant force acting on block b? Determine the horizontal component of the force in rope R

calculate the vertical component of the force in cable C

calculate the angle between the cable and the ceiling​

What is the coefficient of kinetic friction μk between the block and the tabletop?

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

Coal contains energy. a. light b. kinetic c. chemical d. mechanical