A perfectly insulated aluminium rod has length 50 cm and cross-sectional area 3.0 cm? At the steady steady state, the temperature at 0 cm and 50 cm ends are 150 ° C and 50° C. Thermal conductivity of aluminium is 210 Wm' K'. Calculate the rate of heat flow.

The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?

The two required components for a generator are