Both pulleys are fixed to the shaft and as the shaft turns with constant angular velocity, the power of pulley a is transmitted to pulley b. the bearings are in proper alignment and exerted only force reactions on the shaft. note the positive direction of each axis.

a. determine the horizontal tension(t) in the belt on the pulley b if theta=0
b. determine the x, y,z components of the reaction at the journal bearing c(cx, cy, cz)
c. determine the x, y,z components of the reaction at the thrust bearing d(dx, dy, dz)

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2