Question1
The suspended 2.2 kg mass on the right is moving up, the 1.8 kg mass slides down ramp, and the suspended 8.7 kg mass on the left is moving down. Coefficient of friction between the block and the ramp is 0.19. The acceleration of gravity is 9.8 m/s2. The pulleys are mass less and frictionless.
μ = 0.19
what is tension in the cord associated to the 8.7 Kg block?
Question2
Two bars of equal mass are at 33 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J/ (kg . C°). When identical amounts of heat are supplied to each, the glass bar reaches a temperature of 96 °C, while the other bar reaches 257.0 °C. What is specific heat capacity of the previous substance?