Homework Statement
A gas is enclosed in a cylinder fitted with a light frictionless piston and maintained at atmospheric pressure. When 1400 kcal of heat is added to the gas, the volume is observed to increase slowly from 12.0 m3 to 17.7 m3. Calculate the following
(a) work done by the gas...
Homework Statement
A concrete highway is built of slabs 28 m long (20°C). How wide should the expansion cracks be (at 20°C) between the slabs to prevent buckling if the range of temperature is -30°C to +56°C?
Homework Equations
[delta]L = aL[delta]T
The Attempt at a Solution
I...
The springs of a 1100 kg car compress 6.0 mm when its 68 kg driver gets into the driver's seat. If the car goes over a bump, what will be the frequency of vibrations?
I tried to use the weight of the man (68 kg) and the compression distance (6 mm) to find the spring constant. I then tried to...