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Four moles of an ideal gas undergo a reversible isothermal expansion from volume V1 to volume V2 = 5V1 at temperature T = 400K.
a) Find the work done by the gas.
b) Find the entropy change of the gas. (J/deg).
c) If the expansion is reversible and adiabatic instead of isothermal, what is the entropy change of the gas? (J/deg).
Two positively charged particles q1 = 2C and q2 = 2C are separated by distance d = 1.0 m. Calculate the total electric potential energy of 3 particles
Having grown tired of hearing loud music from passing cars at 3 am and the boisterous yelling of bar patrons at closing, If her new home is 2.8 km from the freeway, what's the intensity level there
What is the rate of heat flow into a system whose internal energy is increasing at the rate of 45 W, given that the system is doing work at the rate of 165 W
A person sitting quietly in a room on a winter day may lose heat primarily by radiation from the outer surface of her clothes to the walls of the room. find the temperature of the outer surface of the clothes
Assuming a fica tax rate of 8% on the first 106,800 in wages, and a federal income tax rate of 20% on all wages, illustrate what would be an employee's net pay for the year if he earned 108,000?
A person is standing 8 m away from a speaker and experiences an intensity level consistent with the standard pain threshold. what is the power of the speaker
A person walks first at a constant speed of 5 m/s along a straight line from point A to point B, How much distance does the person cover on her trip
Somewhere between the Earth and the moon, gravity from these two bodies on the space pod would cancel. Is this location nearer the Earth, the moon, or in the middle (having the same distance between) of the earth and the moon.
A pipe with a diameter of 2.88 cm is carrying 134 liters/minute of water with an overpressure (gauge pressure) of 3.65 atmospheres. Find the overpressure of the water in the pipe at the top of the building
A 70-kg ski jumper starts from rest 59 m above the ground on an icy track and flies off the track at an angle of 31°, With what speed does the skier leave the track
A lunar lander is making its descent to Moon Base I. The lander descends slowly under the retro-thrust of its descent engine. What is the speed of the lander
When red light in a vacuum is incident at the Brewster angle on a certain type of glass, the angle of refraction is 39.0°. What is the index of refraction of the glass
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