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Question1
14g of nitrogen gas at STP are adiabatically compressed to a pressure of 20ATM. What are?
(a) Final temperature
(b) Work done by the gas
(c) Heat input to the gas and
(d) The pressure ratio pmax/pmin
(e) Show the process on a pV diagram using proper scales on both axes
Question2
In a particular region of the earth's atmosphere, the electric field above the earth's surface has been measured to be 150 N/C downward at an altitude of 254 m and 165 N/C downward at an altitude of 399 m. Calculate the volume charge density of the atmosphere assuming it to be uniform between 254 and 399 m. Neglect the curvature of the earth.
The right figure shows a force of magnitude F = 12.0 N applied to an 8.00 kg block at a downward angle of ? = 30.0°. find the magnitude of the frictional force on the block
A meter stick supported at the 50 cm mark has masses of 300 g & 200 g hanging from it at the 10-cm & 60-cm mark, respectively. Where should we hang a third, 400-g mass to keep the meter stick balanced?
A spaceship is measured to be 158 m long while at rest relative to the observer. what length does the observer measure
Unpolarized light passes through 5 parallel ideal polarizing filters. What is the ratio of the initial intensity to the final intensity of the light
A surveyor is using a magnetic compass 5.8 m below a power line in which there is a steady current of 88 A. What is the magnetic field at the site of the compass due to the power line
After a shipwreck, a solid steel spoon lies at the bottom of the ocean, 5.45km below the surface, What's the water pressure at that depth
A runaway truck with failed brakes is moving with a speed of 130 km/h just before the driver steers up an emergency escape ramp inclined at 15 degrees above the horizontal
A bungee cord is stretched between two poles with a force of 390 N. What is the velocity of a wave on this bungee cord
A uniform rod of mass M and length L is sitting on a frictionless table. Describe the subsequent motion of the rod
A concert loudspeaker suspended high off the ground emits 42 W of sound power. A small microphone with a 1.0 cm2 area is 43 m from the speaker. (a) What is the sound intensity at the position of the microphone
An 845-N sled is pulled a distance of 170 m. The task requires 1.10 x10^4 J of work and is done by pulling on a rope with a force of 12N. At what angle is the rope held.
An ?-particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.38 106 V, What is the speed of the ?-particle
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