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A movable piston having a mass of 7 kg and a cross-sectional area of 6 cm2 traps 0.17 mol of an ideal gas in a vertical cylinder. The piston slides without friction in the cylinder. The outside of the cylinder is kept at atmospheric pressure, 1.013×105 Pa. a) What is the pressure in the cylinder? b) How much work is done by the gas when its temperature is increased from 20°C to 305°C? c) What was the change in the gravitational potential energy of the piston? d) By what height was the piston raised?
A disk-shaped merry-go-round of radius 2.63 m and mass 155 kg rotates freely with an angular speed of 0.744 rev/s. find the initial and final kinetic energies for this system
The Relativistic Heavy Ion Collider (RHIC) at Brookhaven is colliding fully ionized gold (Au) nulcei accelerated to an energy of 200 GeV per nucleon, What is the speed of each Au nucleus just before collision
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
A thin lens made of glass has a focal length in air of 16.3 cm. A lens of exactly the same shape is then made from diamond. What is the focal length of the diamond lens in air
Each of the current-carrying wires in the figure is long and straight, and carries the current either into or out of the page, as shown. What is the direction of the net magnetic field produced by these three wires at the center of the triangle?
An inductor is connected in series to a 5.5 omega resistor and a 9.0 V bsttery. As soon as the circuit is closed, the current in the circuit is observed to increase from 0 to 0.32 A in 0.15s.
In particular, if a 2.000Å (.2nm) photon interacts with the bound electron in an hydrogen atom (binding energy 13.6 eV) with a Compton collision. What is the energy of the scattered photon
What is the magnitude of the torque about the point where the beam is bolted into place.
A planet orbits the sun with a period of 8 years. How far is the planet from the sun
220 cm3 of hot tea at 89°C are poured into a very thin paper cup with 70 g of crushed ice at 0°C. Calculate the final temperature of the "ice tea"
A missile is fired from a launcher with an initial velocity of 250 m/s at a target located 500 m above the launcher, determine The possible firing angles required to hit the target
A polarized light beam, with a 7.33-mm-diameter circular cross section, is perpendicularly incident on an ideal polarizer, What force in piconewtons does the light exert on the polarizer
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