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A sealed 63 m3 tank is filled with 5000 moles of ideal oxygen gas (diatomic) at an initial temperature of 270 K. The gas is heated to a final temperature of 430 K. The atomic mass of oxygen is 16.0 g/mol. The mass density of the oxygen gas, in SI units, is closest to:
Light of wavelength 440nm in air shines on two slits5.50×10?2mm apart. The slits are immersed in water(n = 1.33), How far apart are the fringes on the screen
A biology student uses a simple magnifier to examine the structural features of an insect's wing. The wing is held 3.60 cm in front of the lens, What angular magnification is achieved
A glass is slid across a table top, goes off the edge and falls to the floor below. With what velocity did the glass leave the table top
A 200 g ball on a 60 cm long string is swung in a vertical circle about a point 200cm above the floor. The tension in the string when the ball is at very bottom of the circle is 4.4 N.
An engine has an efficiency e1. The engine takes input heat QH from a hot reservoir and delivers work W1. The heat rejected by this engine is used as input heat for a second engine.
A 5.00*10^-4 C charged mass (1.00g) is thrown upwards at a speed of 20.0 m/s and it is observed that it has gone up a distance of 15m it is moving at only 10.0 m/s, what is the electric potential at 15 m up
When the water turns to ice during the night, heat is free into the plants, thereby giving them a measure of protection against the falling temperature. Assume a grower sprays 7.64 kg of water at 0°C onto a fruit tree.
Using the capacitance determined in part (a), calculate the current in the circuit 7.4 ms after the switch is closed. Suppose that the capacitor is uncharged initially and that the emf of the battery is 9.0 V
A proton moves at 4.9x106 m/s in a magnetic field where B = 0.42 T. what force does the proton experience
You have been given a long lenght of wire. You measure the resistance of the wire, What is the resistance of one of those sections
This parallel group is connected in series with a 22.0 Ω resistor. The total combination is connected across a 18.0 V battery. Compute the current delivered to the 130 Ω resistor.
The police officer, knowing that the coefficient of kinetic friction between tires and road is 0.80, compute the speed of the sports car at impact.
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