Specific Heat Capacity Required Practical A student is asked to describe a method to investigate what the specific heat capacity
of copper is. Some of the equipment they were provided with is shown below:
-copper block wrapped in insulation, with two holes for a -thermometer and heater
thermometer
-pipette to put water in the thermometer hole
-30 W heater
-12 V power supply
-insulation to wrap around the blocks
-ammeter and voltmeter
-five 4 mm leads
-stop watch or stop clock
-balance

The system is released from rest with the cable taut, and the homogeneous cylinder does not slip on the rough incline. determine the angular acceleration of the cylinder and the minimum coeffi cient s of friction for which the cylinder will not slip.

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?