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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.
Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the stimulated emission wavelength
A 12.0-V battery remains connected to a parallel plate capacitor with a plate area of 0.134m2 and a plate separation of 3.64mm. How much energy is stored in the capacitor
To empty a flooded basement, a water pump must do work (liftthe water) at a rate of 2.00 kW. If the pump is wired to a 240-Vsource and is 84% efficient, how much current does it draw
A 20.0%u03BCF capacitor is charged by a 160.0-VV power supply, then disconnected from the power, Calculate the oscillation frequency of the circuit
A certain concrete will support a maximum compressive stress of 1.28 107 N/m2 before being crushed. A column of uniform width is to be made with this concrete. How tall can the column be if the stress in it at any point is not to exceed one half t..
You have a 120g meterstick. A) Where should you place the meterstick atop your finger so it balances? (Express your answer to two significant figures and include the appropriate units.) B) Where's the balance point if you place an additional 150 mass..
If a rocket that has a mass of 4000 kg expels 50kg of gas with a speed of 1500m/s, what will be the speed of the rocket
Four identical charges (+2.2 ?C each) are brought from infinity and fixed to a straight line. Determine the electric potential energy of this group
A space station of mass 4.5 × 104-kg is to be constructed in the shape of a thin annular cylinder (or ring). The inner radius of the annular cylinder is 100-m, and the outer radius (and location of the floor) is 105-m. Artificial gravity equivalent t..
1.play with pendulum lab to figure out what variables affect the motion of a pendulum and write qualitative
question a proton charge 1.6 x 10-19 travels through a magnetic field of 1.78t with a velocity of 2.3 x 105 msec. what
The intensity of the sound from a certain source is measured at two points along a line from the source. The points are separated by 17.2 m, the sound level is 70.00 dB at the first point and 56.13 dB at the second point.
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