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A classroom contains 6000. ft3 of air-water vapor mixture at 1.00 atm total pressure. The dry bulb temperature is 70.0°F and the wet bulb temperature is 65.0°F. Assuming a closed constant total pressure system, determine the following:
a. The relative humidity.
b. The partial pressure of the water vapor.
c. The dew point.
d. The amount of water that must be added to or removed from the air in the room to achieve 40.0% relative humidity at the same dry bulb temperature.
A charge of -4.02 mC is fixed inplace. From a horizontal distance of 0.958 m, a particle of mass9.27 x 10-5kg, How far does the particle travel before its speed is zero
What is the minimum work needed to push a 800 -kg car 860m up along a 9.0 degree incline
a pulley with a rotational inertia of 1.1 multiplied by 10-3 kgmiddotm2 about its axle and a radius of 11 cm is acted
Ultrathin silver foil ofthicknessTwill be used to make the sphere, and the designers claim that the mass of helium in the sphere will equal the mass of silver used. Assuming thatTis much less thanR, calculate the ratioT/Rfor such a sphere.
A gas is to be expanded from initial state i to final state f along either path 1 or path 2 on a p-V diagram. Path 1 consists of three steps: What is the change in the internal energy of the gas
A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1260 kg. It has strayed too close to a black whole having a mass 99 times that of the Sun.
submarines control their buoyancy using ballast tanks. to sink the tanks can be flooded with water and to rise
Which of the following terms best describes the nature of light from the modern point of view? Waves, rays, photons, or particles
A uniform electric field of magnitude E = 490 N/C makes an angle of ? = 60.0° with a plane surface of area A = 3.90 m2
An AC voltage of the form ?v = 100 sin 1 000t, where ?v is in volts and t is in seconds, is applied to a series RLC circuit. Find the average power delivered to the circuit
A 50,000 kilogram space shuttle is in a 500 kilometer high circular orbit about the earth and wants to descend into a 300 kilometer high orbit. Obtain how much total energy will it have to gain or lose to do this
A ball is shot from the top of a building with an initial velocity of 20 m/s at an angle ? = 44° above the horizontal. If a nearby building is the same height and 55 m away, how far below the top of the building will the ball strike the nearby build..
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