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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.K
A heavier mass m1 and a lighter mass m2 are 20.0 cm apart and experience a gravitational force of attraction that is 9.00 10-9 N in magnitude. Determine the value of each individual mass
While visiting Planet Physics, you toss a rock straight up at 14m/s and catch it 2.5s later. determine the mass of Planet Physics
An ice skater slides (without pushing) across a frozen pond for 25.0 m before coming to a stop. If the coefficient of kinetic friction is 0.050, how fast was the skater initially moving
What is the longest focal length lens that will work?
A satellite is in circular orbit around the Earth at a distance of 7.14RE with a speed of 2.96 km/s. With what speed would the satellite hit the Earth's surface
A sled and its rider are moving at a speed of 4.0 m/s along a horizontal stretch of snow. The snow exerts a kinetic frictional force on the run ner of the sled, what is the displacement of the sled
You walk from your house 0.25 miles West to Fred's house, What is your displacement from your initial position
What is the velocity of the rocket when it runs out of fuel.
An electric dipole is formed from 1.0nC charges spaced 3.00 mm apart. What is the electric field strength at the given points
An electric motor rotating a workshop grinding wheel at a rate of 9.90 x 10^1 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 1.70 rad/s2.
A 2000kg vehicle is travelling down the road at 20m/s (45 mph) when it reaches an intersection. Between rubber and dry asphalt, the coefficient of friction is 0.80. What is the minimum distance necessary for the car to stop.
Suppose that the spin magnetic quantum number ms had three possible values, rather than two. how many electrons would it take to fill the K shell
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