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A cubical block of iron, 10 cm on a side, has density of 7850 kg/m3, heat capacity of 0.11 cal/g·oC, and volume expansion coefficient of 3.6 10-5/oC. The block is heated from 20 oC to 300 oC at a constant pressure of 1 atm.
a. Find the work and internal energy change of the block.
b. What is the percentage of heat changes into internal energy change ?
c. What is the percentage of heat changes into work?
an automobile tire is inflated with air originally at 10.0degc and normal atmospheric pressure. during the process the
Some of the earliest atomic models held that the orbital velocity of an electron in an atom could be correlated with the radius of the atom, what is the kinetic energy of this orbital electron
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Calculate the overall efficiency to produce light in a fluorescent lamp from electrical energy derived from a nearby nuclear power plant.
There is a thick walled hollow cylinder (outer radius a, inner radius b). (z axis is the height of the cylinder) with its center located at the origin (x=0, y=0,z=0). Find the gravitational potential of the cylinder at point P located on X axis
If the final temperature of the mixture is 42.5°C, what is the specific heat of the alloy? (Ignore the calorimeter stirrer and thermometer.)
A 350 kg piano slides 3.90 m down a 23 degree incline slope, and is kept from accelerating by a man who is pushing back on it parallel to incline. What is the force completed by the man.
A ball is thrown vertically upward and caught 20 seconds later at the same point from which it was released. what was the ball's initial velocity
A 0.156 toy is undergoing SHM on the end of a horizontal spring with force constant 306. Find the maximum speed attained by the object
The gauge pressure in your car tires is 2.63×105 N/m2 at a temperature of 29.4ºC when you drive it onto a ferry boat to Alaska. What is their gauge pressure later, when their temperature has dropped to -17.9ºC ? Give your answer in terms of 105 Pa..
a calculate the acceleration due to gravity your weight and your escape velocity for each planet in the solar system
A basketball (hollow) rolling along without slipping at 4.0 m/s and then encounters a hill. How high (in vertical meters) will it get up the hill before coming to a stop?
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