Asection of shaft diameter, d, joined to a section of diameter with fillet which produces an actual stress concentration factor of kf-1.22 for a shaft in torsion. take sys-560mpa and sn-375mpa. using a size factor of 0.85, surface finish factor of 0.85 and a load factor of 0.6, determine the size of the shaft required for a torque which varies from 0 to 2.26 kn-m. use design factor of 2.0

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

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