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A sealed container containing 4.0 mol of gas is squeezed, changing its volume from 0.020 m^3 to 0.018.m^3 During this process, the temperature decreases by 9.0 K while the pressure increases by 450 Pa. What was the original pressure and temperature of the gas in the container?
A beam of protons at an accelerator creates a current of 164uA. If the beam is focused on a target, how many protons strike the target in 60.0s
An eagle with a wing span of 2.0m flies due north at 8.0m/s in a region where the vertical component of the earth’s magnetic field is 0.2x10-4 T. What emf would be developed among the eagles wing tips?
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. What is the period of a satellite in a geosynchronous orbit
Calculate the electric flux through the cube - calculate the scalar potential at the origin.
A light ray goes through two thick rectangular slabs of glass, each of the same uniform thickness. The first slab has index of refraction n1 and the second n2. If n1
you place a small lightbulb 70 cm from a concave mirror and find a real image 17 cm from the mirror. where should you
An atomic nucleus initially moving at 420 m/s emits an alpha particle in the direction of its velocity and the remaining nucleus slows to 350 m/s. determine what speed does the alpha particle have when it is emitted
If a nearby building is the similar height and 55 meter away, find how far below the top of the building will the ball strike the nearby building
What is the total mass of the Earth’s atmosphere? (The radius of the Earth is 6.37 x 10 6 m, and atmospheric pressure at the surface is 1.013 x10 5 N/m2 ). Think about why we can use such a simple equation to find the mass of the Earth’s atmosphere? ..
One of the most efficient engines built so far has the following characteristics: combustion chamber temperature = 1900°C, What is the actual efficiency of this engine
the half-life of a muon at rest is 1.52 us. One can store muons for a much longer time by accelerating them to a speed very close to that of light, How fast will the muons have to be moving
Find the net force on the Moon (mM = 7.35 × 1022 kg) due to the gravitational attraction of both the Earth mE = 5.98 × 1024, Determine the direction of the net force
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