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A gas fills the right portion of a horizontal cylinder whose radius is 4.80 cm. The initial pressure of the gas is 1.01 × 105 Pa. A frictionless movable piston separates the gas from the left portion of the cylinder, which is evacuated and contains an ideal spring, as the figure shows. The piston is initially held in place by a pin. The spring is initially unstrained, and the length of the gas-filled portion is 20.0 cm. When the pin is removed and the gas is allowed to expand, the length of the gas-filled chamber doubles. The initial and final temperatures are equal. Determine the spring constant of the spring in N/m.
A 100-turn, 5.00 cm-diameter coil is at rest in a horizontal plane. A uniform magnetic field 60° away from vertical increases from 0.5 T to 2.50 T in 0.9 seconds, What is the induced emf in the coil
A proton and an electron are moving due east in a constant electric field that also points due east. Determine the magnitude of the acceleration of the proton and the electron
A pump is required to lift 800 kg of water (about 210 gallons)per minute from a well 14.0m deep and eject it with a speed of 18.0m/s. What must be the power output of the pump
A 121 Watt driveway light bulb is on 6.5 hours per day. Assuming the power company charges 8.6 cents for each kilowatt-hour of electricity used. Calculate the annual cost to operate the bulb
A 0.060kg ball is propelled by a 1.10kg racquet from rest to a speed of 40.0m/s. If the two objects are in contact for 250ms, calculate the average force exerted by the racquet on the ball
A projectile is launched from ground level to the top of a cliff which is 195.0 m away and 135.0 m high. If it lands on top of the cliff 6.600s after it is fired, Find the magnitude of the initial velocity of the projectile
consider a guitar string stretching 85.6 cm between its anchored ends.the string is tuned to play middle c with a
A jogger travels a route that has two parts. The first is a displacement of 2.70 km due south, and the second involves a displacement that points due east.
A glass is half-full of water, with a layer of oil(n = 1.51) floating on top. A ray of light traveling downward through the oil is incident on the water at an angle of 72.9°. Take the refraction index of water to be1.333.
An electron is to be accelerated from a velocity of 1.00×106m/s to a velocity of 7.00×106 m/s. Through what potential difference must the electron pass
Three ships leave a spacestation at nearly the same time. As seen by a spacestation observer, Find the speed and direction of ships 2 and 3
An aircraft weighing 812 N is accelerated at 11.8 m/s2 for 5 seconds, at which time the aircraft launches. Assume the acceleration is constant
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