What are the three conditions necessary for work to be done? Give an example that shows when each condition is NOT met and work is NOT done.
What are the three conditions necessary for work to be done? Give an example that shows when each condition is NOT met and work is NOT done.
A commuter train travels from Baltimore to Washington DC and back in 1 hour and 45 minutes. The distance between these two stations is about 40 miles. a.) What is the average velocity of...
Two unequal masses of iron both have the same Internal energy, which of the following is true? a. The larger mass is hotter b. The smaller mass is hotter c. The have the same...
a. 8.0 cm b. 12 cm c. 20 cm d. 16 cm
On a phase diagram there is a triple point, where solids liquids and gasses all exist at the same temperature and pressure. If I decrease the temperature but increase the pressure from this triple...
If a contained ideal gas decreases the volume by a factor of two and then triples the temperature, what happens to the pressure? a. It goes up by a factor of 2 b. It goes up by...
If a tank has 2.50 g of N2 (nitrogen atom has 14 nucleons) and a volume of 1950 cm3 and it is held at 142 0 C, what is the pressure?
If one wanted to help insulate their house, by replacing their windows made of the same material, would it be better to have, smaller windows (say let A = ½ original) or thicker glass (say twice...
Using the correct relationship between temperature in Celsius and Fahrenheit, what one temperature has the Fahrenheit value equal the Celsius value?
If you want to find the latent heat of fusion, you take a cup with 0.755 kg of water at 30.00 C and drop 0.0850 kg of ice initially at 0.000 C and it all reaches an equilibrium temperature of...
2.50 moles of an ideal monatomic gas are compressed from 315,000 Pa to 175,000 Pa at 0.0300 m3. What is the change in internal energy in this isochoric process?
Excluding stoppages the speed of a bus is 54km/hr and including stoppages it is 45 km/hr. For how many minutes the bus stop per hour.
Calorimetry a. How much heat needs to be taken from 0.5 kg of ethyl alcohol as a gas at its boiling point of 78.0 C to a solid at its freezing point -114 C if the latent heat of vaporization...
Kinetic theory a. What is the average kinetic energy of a monatomic gas at a temperature of 354 K? b. If this is Ne gas (neon has 20 nucleons) what is the root-mean-squared speed...
If a 0.06247 kg ice cube initially at 0.00 C is allowed to melt in a Styrofoam cup holding 0.497 kg of water at 10.0 C , what is the total entropy change for this process?
Consider a common refrigerator in a standard home, where the temperatures are 22.0 C in the home and the refrigerator is kept slightly above freezing. If a 0.750 kg ice cube initially at 0.00...
Derive velocity of forward propagation = wavelength x frequency, probably deriving it from the formula for angular motion. 2 speakers, 1 behind the other, same hertz. Someone walking towards...
a. must have passed through the center of the lens b. parallel to the horizontal axis c. must have pass through the focal point on the opposite side of the lens d. vert...
Mass=100 kg Angle= 30 degree Distance= 20 meter Speed =?
I'm reviewing some practice thermodynamics questions for my upcoming physics exam but I can't figure out how to set these up properly. 1. If you mix two parts hot 80° C water with one...