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Question: Assume that at a given frequency the opacity of the stellar plasma at the surface of a given star is dominated by Thomson scattering. Estimate the depth (in cm) of the atmosphere that is visible to an outside observer at that frequency, while assuming that the electron density in this region is constant and equal to 1016 cm3.
Part A: What percentage of the solar radius is this value?
I need help to find what percentage of the solar radius is this value.
A block of wood has a mass of 3.72 kg and a density of 579 kg/m3. It is to be loaded with lead so that it will float in water with 0.72 of its volume immersed. The density of lead is 1.13 104 kg/m3. (a) What mass of lead is needed if the lead is on t..
question1a metal rod of length 20.0 cm and mass 100 g is free to slide over two parallel horizontal metallic rails
A swimmer runs horizontally off a diving board with a speed of 3.44m/s and hits the water a horizontal distance of 1.74m from the end of the board. How high above the water was the diving board
A wire coil of 20 turns has a cross-sectional area of 16 cm2. The coil is placed in a uniform field of a large magnet with B = 0.17 T. What is the magnitude of the average emf produced
At what rate is the flywheel spinning while the power comes back on. How long after the beginning of the power failure would it have taken the flywheel to stop if the power had not come back on.
A rocket moves upward, starting from rest with an acceleration of 32.0 m/s2 for 4.32 s. How high does it rise above the ground
Four mirrors are at right angles to one another. A light ray is incident on the first at an angle of 60. What is th angle of reflection from the third surface
A car rounds a curve that is banked inward. The radius of curvature of the road is R = 114, Find the maximum speed that the car can have without slipping
a motorcycle is following a car that is traveling at constant speed on a straight highway. initially the car and the
A car and a truck are both travelling at the speed limit of 60 km/h but in opposite directions. Calculate the speed of the combined wreck immediately after the collision
A bullet hit a block of wood with a mass of 10 kg, traveling horizontally at 300 m/s. What is the recoil velocity of the block
When two capacitors are connected in parallel their equivalent capacitance is 12 ?F. What is the capacitance of the smaller of the two capacitors
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