SKS: A small rocket is launched vertically from rest and reaches an altitude h
The acceleration is constant at 12.5m/s? until the fuel burns out after 6 8 8. Assuming
that from the point of burn-out onwards the rocket is travelling freely vertically upwards
with constant deceleration g =9,81 m/s?, find the value of hl​

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.

The proportional limit is always greater than the yield strength for a material. a)-trune b)- false