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Gas is enclosed in a cylinder with a movable piston on top of it. The piston has a mass of 7 900 gram and an area of 4.50 cm2 and is free to slide up and down, keeping the pressure of the gas constant. Find how much work is done on the gas as the temperature of 0.240 mol of the gas is raised from 24.0°C to 350°C?
The Moon has an angular size of 0.50 ? when viewed with unaided vision from Earth. What is the angular size of the Moon as seen through this telescope
A copper rod 81cm long is used to poke a fire. The hot end of the rod is maintained at 105 degrees celcius and the cool end has a constant temperature of 21 degrees celcius. What is the temperature of the rod 25cm from the cool end?
Calculate the capacitance of an air filled parallel plate capacitor given a plate seperation of .001 meters and a plate area of .8 meter^2
An elevator can lift a 125 N aircraft a distance of 22 meters in 12 s. What is the power output of the elevator
A cable is lifting a construction worker and a crate, as the drawing shows. What is the tension in the cable below the worker
q1. the sound level measured in a room by a person watching a movie in a home theatre system varies from 66 db during a
A light bulb emits light uniformly in all directions. The average emitted power is 150.0 W. At a distance of 4.50 m from the bulb, find out (a) the average intensity of the light, (b) the rms value of the electric field, and (c) the peak value of t..
A particle executes simple harmonic motion with an amplitude of 7.1 cm. At what displacement (in cm) from the midpoint of its motion will its speed equal one half of its maximum speed?
A car travels a distance of 50km/hr. it then travels an additional distance of 60km in 1 hour. what is the average speed of the car for the entire trip
If the far end of the iron rod is in an ice bath at 0°C, find the rate of heat transfer passing from the boiling water to the ice bath. Suppose there is no heat loss to the surrounding air.
You ski straight down a 43.4° slope, starting from rest and traveling a distance of 10.3 m along the slope. Find your final velocity
A small piece of dust of mass m = 1.0 µg travels through an electric air cleaner in which the electric field is 500 N/C, What is the charge on the dust particle
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