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A system consisting of an ideal gas at the constant pressure of 120kPa gains 800J of heat a)Find the change in volume of the system if the internal energy of the gas increases by 480J b)Find the change in volume of the system if the internal energy of the gas increases by 570.
A flat uniform circular disk (radius = 2.40 m, mass = 1.00 x 10^2 kg) is initially stationary. The disk is free to rotate in the horizontal plane about a frictionless axis perpendicular to the center of the disk. A 45.0 kg person, standing 0.95 m fro..
A car of mass = 1300 travelling at 56.0 enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between the road and car's tires. What is the radius of the turn if = 20.0 (assuming the car continues in uniform ..
When placed 1.2 m apart, the force each exerts on the other is 12 N and is repulsive. What is the charge on each? What if the force were attractive.
A 5 g bullet with an initial velocity of 95 m/s lodges in a block of wood and comes to rest at a distance of 6 cm. assume the bullet undergoes a constant negative acceleration; it slows at a constant rate. How much time does it take for bullet to ..
To determine the location of her center of mass, a physics student lies on the lightweight plank supported by two scales 2.50 apart, as indicated . If left scale reads 300 , and right scale reads 122 .
What is the magnitude of the acceleration of the anvil. find the mass of the planet from this information.
Suppose you do 457 J of work on 1.18 moles of ideal gas in a perfectly insulated container. By how much does the internal energy of this gas change.
An airtight box has a removable lid of area 2.0 10-2m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 0.75 x10^5Pa. The inside of the box is completely evacuated. What is the magnitude of force nece..
The potential differences across the capacitors are the same only if the capacitances are the same.
An AC power generator produces 50 A (rms) at 3600 V. The voltage is stepped up to 100 000 V by an ideal transformer and the energy transmitted throughout a long-distance power line with a total resistance of 100 Omega. What is the rms current in l..
Using energy considerations, compute the average force the beam exerts on the pile driver while the pile driver is brought to rest.
Assume you are 80cm from a plane mirror. What area of the mirror is used to reflect rays entering one eye from a point on the tip of your nose if your pupil diameter is 5.60 mm.
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