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A sealed 37 m3 tank is filled with 6000 moles of ideal oxygen gas (diatomic) at an initial temperature of 270 K. The gas is heated to a final temperature of 420 K. The atomic mass of oxygen is 16.0 g/mol. The initial pressure of the gas, in MPa, is?
Two tiny conducting spheres are identical and carry charges of -16.6C and +56.3C, Determine the magnitude of the force that each sphere now experiences
Calculate the Q-value of the alpha decay of 211Po. It was found that 211Po can follow an alpha decay to an meta state. The alpha energy in this decay is 7.275 MeV
A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 30 degree angle from the horizontal, at what initial speed must he throw the ball so that it goes through the basket without striking the back..
Two non conservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long climb. What is the transform in the car's kinetic energy, ΔKE = KEf - KE0, from A to B.
A microscope has a 16.8 cm tube length, a 0.64 cm focal length of the objective lens, calculate the microscope's magnification
The system shown below has frictionless pulleys and the string have negligible mass. what is the speed of the objects when they are at the same height
Many people mistakenly believe that the astronauts that orbit Earth are "above gravity." Calculate g for space shuttle territory 150 km above Earth's surface. suppose Earth's mass is 6.0 1024 kg, and its radius is 6.38 106 m (6380 km). Your answer..
A fire hose held near the ground shoots water at a speed of 6.2 m/s.At what angle(s) should the nozzle point in order that the water would land 2.5 m away.
Two capacitors (C1 = 6.00 µF and C2 = 11.0 µF) are now connected in series and to a 9.00-V battery, Find the charge on each capacitor
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. (a) How many electrons are there in 4.79 liters of water? (1 liter is equivalent to 1.00 × 10-3 m3) (b) What is the net charge of all these electrons?
A beam of blue light of wavelength 500 nm has an intensity of 170 W/m^2, How many photoelectrons are emitted from the potassium plate per second
Suppose you see two main-sequence stars of the same spectral type. Star 1 is dimmer in apparent brightness than Star 2 by a factor of 100. What can you conclude? (Overlook any effects that might be caused by interstellar dust and gas.)
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