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(a) What is the surface temperature of Betelgeuse, a red giant star in the constellation of Orion, which radiates with a peak wavelength of about 970 nm?
K
(b) Rigel, a bluish-white star in Orion, radiates with a peak wavelength of 145 nm. Find the temperature of Rigel's surface.
Jane looking for tarzan, is running at top speed (5.7m/s) and grabs a vine hanginf vertically from a tall tree in the jungle. How high can she swing upward
It is desired to slip an aluminum ring over a steel bar. At 10 the inside diameter of the ring is 4.550 and the diameter of the rod is 4.580. Find the temperature at which the ring can be removed
A 0.120-kg, 50.0-cm-long uniform bar has a small 0.055-kg mass glued to its left end and a small 0.110-kg mass glued to the other end. How far from the left end should the fulcrum be placed
Calculate the capacitance of an air filled parallel plate capacitor given a plate seperation of .001 meters and a plate area of .8 meter^2
A double convex lens (convex on both sides) is made of glass with an index of refraction of 1.65. What is the magnitude of the larger radius
Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.6 seconds, what will be his final velocity and how far will he fall
During a circus performance, a 67-kg human cannonball is shot out of an 17-m-long cannon. determine the average net force exerted on him in the barrel of the cannon
The Ed-Scale defines the perfect temperature of a martini to be 8.0 degrees E and boling point of antifreese to bee 100 degrees E. Use this equation to find the freezing point of water in Eds
A uniform board is leaning against a smooth vertical wall. The board is at an angle (theta) above the horizontal ground. Find the smallest value for the angle (theta), such that the lower end of the board does not slide along the ground.
The work from the engine goes into an ideal refrigerator which extracts 5900.0 J of heat from its cold reservoir. Find the coefficient of performance of the ideal refrigerator
Problem 12.30: Singing in the shower. We all sound like great singers in the shower, due to standing waves, What are the wavelengths of the first two overtones for this shower
A runner accelerates to a velocity of 4.15 m/s due west in 1.50s. His average acceleration is 0.640 m/s^2, also directed due west. What was his velocity when he began accelerating.
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