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We have some gas in a cylinder. The diameter of the cylinder is 8.1 cm. The mass of the piston is 13.5 kg. The atmospheric pressure is 9.4 x 10^4 Pa. (a) Find the pressure (Pa) of the gas. (Both the weight of the piston and the pressure of the atmosphere on top of the piston contribute to the pressure of the gas inside the cylinder.) (b) If we heat up the gas so that the piston rises from a height of 12.3 cm to 15.6 cm (measured from the bottom of the cylinder), find the work (J) done on the gas. Note that the pressure of the gas remains constant as it is heated up. Be sure to include the correct sign on the answer.
consider the human eye to be composed of a thin lens of uniform index of refraction n 1.42 with fluid of n 1 inside
Find the net rate of radiation by a pot at 45.1°C that has been placed in a -24.1°C freezer. The pot\'s surface area is 0.117 m2 and its emissivity is 0.635
A flint glass plate (n = 1.66) rests on the bottom of an aquarium tank. The plate is 6.50 cm thick (vertical dimension) and covered with water (n = 1.33) to a depth of 11.8 cm. Calculate the apparent thickness of the plate as viewed from above the wa..
use the uncertainty principle to obtain the uncertainty in the momentum of a particle of mass m confined to a cube of
a. kc 8.98755 x 102 nm2c2 and the charge on a proton is 1.60218 x 10-19 c. find the potential 1.08 cm from a proton.b.
A 1.6 kg ball is at rest on the floor in a 2.4 m ? 2.4 m ? 2.4 m room of air at STP. Air is 80% nitrogen (N2) and 20% oxygen (O2) by volume. What is the thermal energy of the air in the room
In a double-star system, two stars of mass 6.0 *10^30 kg eachrotate about the system's center of mass at a radius of 2.0 * 10^11m. What is their common angular speed?
You are designing a delivery ramp for crates containing exercise equipment. Calculate the maximum force constant of the spring kmax that can be used in order to meet the design criteria
A typical steel B-string in a guitar resonates in its fundamental frequency at 240 Hertz. The length of the string is 0.600 m. Find the wavelength of the third harmonic of the guitar string
A cable is 5.00 m long and has a diameter of 1.50 mm. The tensile modulus of the cable is 2.50 × 1010 N/m2. A force is applied to the end of the cable and the cable stretches by 3.00 mm. What is the applied force?
A bicycle tire rolls down a 25 m hill and crashes into a car door. how fast did the tire collide with the door
A box starts out at the top of a frictionless ramp, then slides down. The ramp has a height h = 3 meters and a slope of 5 degrees with respect to the ground. What does this make the velocity of the box at the bottom
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