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One mole of oxygen gas is at a pressure of 5.40 atm and a temperature of 29.0°C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature? °C (b) If the gas is heated so that both the pressure and volume are doubled, what is the final temperature? °C
The rotational inertia of a collapsing spinning star changes to 1/4 its initial value. What is the ratio of the new rotational kinetic energy to the initial rotational kinetic energy.
The input coil of a transformer has 10 winding current to flow from 12 volt battery. how long will it take for circuit to rach its final current
A 8500 kg boxcar traveling at 16.8 m/s strikes a second boxcar at rest. What is the mass of the second car
If the boy is traveling at 1 m/s relative to the ground, explain how fast does the boy appear to be moving relative to the woman? show your work.
A hydraulic lift has pistons with areas 0.65m^2 and 5.50m^2 , and they're at the same height. how much mass can the larger piston support
A 4.0 ohm resistor is connected in parallel with a 12 ohm resistor and both of these are connected to a DC power supply with voltage V. what is the current through the 4.0 ohm resistor
An electric motor rotating a workshop grinding wheel at a rate of 1.10 102 rev/min is switched off, How long does it take for the grinding wheel to stop
An electric fan is running on HIGH. After the LOW button is pressed, the angular speed of the fan decreases to 85.0 rad/s in 1.76 s. Determine the initial angular speed of the fan
A frictionless block of mass 1.95 is attached to an ideal spring with force constant 340 . At the spring is neither stretched nor compressed and the block is moving in negative direction at a speed of 12.6.
A photon is emitted when a hydrogen atom undergoes a transition from the n = 10 state to the n = 4 state. Calculate values for the following. (a) the wavelength nm (b) the frequency Hz (c) the energy of the emitted photon eV
A traveling sinusoidal electromagnetic wave in vacuum has an electric field amplitude of 57.1 V/m. Find the intensity of this wave and calculate the energy flowing during 16.9 s through an area of 0.0217 m2
After a day of testing race cars, you decide to take your own 1580kg car onto the test track. While moving down the track at 10.0 m/s, you uniformly accelerate to 28m/s in 10 s. What is the average net force that you have applied to the car throug..
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