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A gas in a rigid vessel is at ambient temperature and at a pressure, P1, slightly higher than ambient pressure, P0. A valve on the vessel is opened, so gas escapes and the pressure drops quickly to ambient pressure. The valve is closed, and after a long time the remaining gas returns to ambient temperature, at which point the pressure is P2. Develop an ex- pression that allows a determination of the ratio of specific heats, k, in terms of the pressures.
Consider a circuit consisting of a lightbulb and a capacitor. Part A:If the frequency of the generator is increased, does the intensity of the lightbulb increase, decrease, or stay the same? Part B:Choose the bestexplanation from among the following:
he sun radiate a power of 3.9 x 10 ^ 26 watt in space . The earth orbits around the sun of radius of 1.5 x 10 ^11 m, What is the intensity of sun light on the noon time at the equation on the winter days
A common flashlight bulb is rated at 0.108 A and 3.28 V (the values of current and voltage under operating conditions). estimate the temperature of the tungsten filament when the bulb is turned on
A long, straight wire carrying a current of 2.00 A is placedalong the axis of a cylinder or radius 0.500 m and a length of 3.00m. Determine the total magnetic flux through the cylinder
When it rains water vapour in the air condenses into liquid water and energy is released. How much energy is released when 0.0244m of rain falls over an area of 2.59 x 10^6 m^2? If the average energy needed to heat one home for a year is 1.40 x 10^11..
An engine absorbs 1702 J from a hot reservoir and expels 1198 J to a cold reservoir in each cycle. What is the engine's efficiency? How much work is done in each cycle?
a 2--tall object is 26 to the left of a lens with a focal length of 13 . a second lens with a focal length of -5 is 37
An advertisement claims that a centrifuge takes up only 0.127m of bench space but can produce a radial acceleration of 3000g at 5000 rev/min. Calculate the required radius of the centrifuge
A meterstick is initially balanced on a fulcrum at its midpoint. You have four identical masses. Where should the fourth mass be placed in order to balance the meterstick
The magnetic field due to a 2-A current flowing in a long, straight wire is 8 ?T at a point P, a certain distance away from the wire. How far is this point from the center of the wire
A 0.7 kg block of ice is sliding by you on a very slippery floor at 3.5m/s. As it goes by, you give it a kick perpendicular to its path. Your foot is in contact with ice block for 0.003 seconds.
A car of mass M= 1690 kg oscillates on its springs at a frequency f=0.44 Hz and an amplitude A=0.58m. What is the total energy of this oscillation
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