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A.) what is the average kinetic energy in joules of hydrogen atoms on the 5,500 degree celcius surface of the sun?
B.) What is the average KEof helium atomsin a region of the solarcorona where the temp is 6.00E+5K?
A vertical tube 1.9cm in diameter and open at the top contains 4.0g of oil (density 0.82 g/cm^3) floating on 4.0g of water. Find the gauge pressure at the oil-water interface
A block slides upward on a rough, vertical wall at constant velocity when a force F of 60 N acts on it at an angle ? = 60? to the horizontal. Determine the force of kinetic friction on the block
The yellow light from a helium discharge tube has a wavelength of 587.5 nm. Calculate the number of lines per centimeter on the grating
The Pfund series results from emission/absorption of photons due to transitions of electrons in a hydrogen to/from the n = 5 energy level from/to higher energy levels
Make a table summarizing the rules for circuits with resistors: How to combine resistors in parallel, how do voltages behave in series and in parallel
A bicyclist of mass 75 kg ( including the bicycle) can coast down a 4.0 degree hill at a constant speed of 10 km/h. Pumping hard,the cyclist can descend the hill at a speed of 30 km/h.
An average temperature of the rest of the universe
compute the force of the Earth's gravity on an electron and evaluate it with the force exerted on the electron by an electric field of magnitude 12500-V/m (a relatively small field). The mass and charge of an electron are given on the inside back ..
The speed of light in a transparent medium (such as glass) is less than the speed of light in a vacuum. Is this a violation of the theory of relativity.
A dentist's drill starts from rest. After 3.50 s of constant angular acceleration it turns at a rate of 2.7 x 104 rev/min. Find the drill's angular acceleration
A 195 W (121 V) night light is turned on for an average 6.5 hr a day year round. What is the annual cost of electricity at a billing rate of $0.07 per kWh
There is also blue light which has a transmitted angle in the water that is 0.56 degrees smaller than that of the red light in the water. What is the incident angle of blue light
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