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Solve the following question given below:
Question: The brightest star in Bootes is the reddish star Arcturus, while the brightest star in the constellation Lyra is the bluish star Vega.
Part A: What does the difference in color between the two stars indicate to astronomers about their temperatures?
Please explain the equations and steps are used to get the answer. Thank you!
The mean distance between the earth and the sun is 1.5x1011m. The average intensity of solar radiation incident on the upper atmosphere of the earth is 1390 W/m2. Assuming that the sun emits radiation uniformly in all directions, determine the total ..
A baton consists of a 10-cm rod of mass 200 g with small metal spheres, each of mass 100 g, on either end. Calculate the moment of inertia of the baton about an axis through the center of the rod and perpendicular to it
A driver in a car travelling at the speed of 78 km/h sees a cat km away on the road. How long will it take for the car to accelerate uniformly to a stop in exactly 99 m.
The density of bcc iron is 7900 kg/m3 and its atomic weight is 56. Calculate the side of the cubic unit cell and the interatomic spacing
A woman pushes a 25 kilogram lawn mower, If F=30 Newton and θ=37o, Determine the acceleration of the mower, and Find the normal force exerted on the mower by the lawn
q1. a 1.2 kg mass attached to a spring oscillates with amplitude of 6.3 cm and a frequency of 1.1 hz. what is its
a parallel-plate capacitor has 5.0 cm x 5.0 cm electrodes with surface charge densities 1.0 x 10-6 cm2. a proton
In the Atwood machine shown below, m1 = 2.00 kg and m2 = 5.35 kg. The masses of the pulley and string are negligible by comparison. The pulley turns without friction and the string does not stretch. The lighter object is released with a sharp push th..
a 0.5 kg dart is fired vertically from a spring gun that has spring constant of 4000 nm prior to release the spring was
A track is going down the air track with a photo gate near the end of the track. Find by what factor should the velocity of an object change
a farsighted person has a near pont that is 67cm from her eyes. she wears eyeglasses that are designed to enable her to read a newspaper held at a distance of 25cm from her eyes. find the focal length of the eyeglasses
High power lasers in factories are used to cut through cloth and metal. One such laser has a beam diameter of 0.407 mm and generates an electric ?eld at the target having an amplitude 0.985 MV/m.
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