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(1) A 0.5-ft^3 balloon filled with nitrogen gas is initally at 75 degrees F and 50 psia. It is now heated at constant pressure to 150 degrees F. What is the new volume in ft^3?
(2) A room with dimensions 10 x 10 x 20 meters is filled with air at 20 degrees C, 101 kPa and relative humidity 0.8. What is the mass of water vapor in the room, in units of kg?
A 2100 kg car moving east at 10 m/s collides with a 3000 kg car moving north. The cars stick together and move as a unit after the collision, at an angle of 35 ° north of east and at a speed of 5.03 m/s. Find the speed of the 3000 kg car before th..
What is the fundamental resonant frequency of the air column if the velocity of sound in the air is 340 m/s.
What is the maximum height the rocket reaches. How long is the rocket in the air.
An electric dipole includes a charge of 4 ?C and a second charge. What is the total charge of the dipole?
What is the most amounts by which the wavelength of an incident photon could change when it undergoes Compton scattering from an atom or molecule with a 19 u mass .
A 45.4 kg girl is standing on a 144 kg plank. The plank, at first at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 1.60 m/s relative to the plank. Wha..
Suppose there is a cube made of copper. Initially, it has a net charge of zero. How will the electrons arrange themselves
River Pascal with a volume flow rate of 3.4x10^5 L/s joins with river Archimedes, which carries 1.12x10^6 L/s, to form the Bernoulli River. What is the speed of the water in the Bernoulli River
A mortar* crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. How long will the mortar shell remain in the air
The mean distance between the Earth and the Sun is 1.50×1011 m. determine the total power radiated by the Sun
A solid cylinder has a mass of 3.2kg and a radius of 0.6m. find the linear acceleration of the center of mass of the cylinder?
A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times that of the neutron. What is the speed of the helium nucleus after the collision
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