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​

Asample of a gaseous substance changes into a liquid

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. with the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 2.05cm in front of the eye.)