Astronomers using a 2.0-m-diameter telescope observe a distant supernova-an exploding star. The telescope's detector records 7.5 x 10-11 J of light energy during the first 10 s. It's known that this type of supernova has a visible-light power output of 5.5 x 1037 W for the first 10 s of the explosion. Part A How distant is the supernova? Give your answer in light years, where one light year is the distance light travels in one year. The speed of light is 3.0 x 108 m/s. Express your answer in light years. ▸ View Available Hint(s) [5] ΑΣΦ xa Xb d=2.86.10⁰ √x √√x x C 1x1 ? X.10 DE ly

Astronomers using a 2.0-m-diameter telescope observe a distant supernova-an exploding star. The telescope's detector records 7.5 x 10-11 J of light energy during the first 10 s. It's known that this type of supernova has a visible-light power output of 5.5 x 1037 W for the first 10 s of the explosion. Part A How distant is the supernova? Give your answer in light years, where one light year is the distance light travels in one year. The speed of light is 3.0 x 108 m/s. Express your answer in light years. ▸ View Available Hint(s) [5] ΑΣΦ xa Xb d=2.86.10⁰ √x √√x x C 1x1 ? X.10 DE ly

Name: Astronomers using a 2.0-m-diameter telescope observe a distantsuperno
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Description: Astronomers using a 2.0-m-diameter telescope observe a distantsupernova-an exploding star. The telescope's detector records 7.5 x10-¹1 J of light energy during the first 10 s. It's known that this type ofsupernova has a visible-light power output of

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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d. Again: Assume Particles are fired (continually, as in a machine gun) from Source to Receiver. But Now: Assume that the Receiver is Receding from Source at a speed of 80 m/s relative to the Air. Assume that the Source is stationary relative to the Air. i. Draw a diagram of the situation as you understand it, making sure to label all values and making absolutely sure to explicate the + direction. ii. As measured by the Source, what is the velocity of each of these Particles? iii. As measured by the Source, how far apart are each of these Particles? iv. As measured by the Receiver, what is the velocity of each of these Particles? v. As measured by the Receiver, how far apart are each of these Particles? vi. As measured by the Receiver, what is the firing frequency of these Particles?
Astronomers using a 2.0-m-diameter telescope observe a distant supernova-an exploding star. The telescope's detector records 7.5 x 10-11 J of light energy during the first 10 s. It's known that this type of supernova has a visible-light power output of 5.5 x 1037 W for the first 10 s of the explosion. Part A How distant is the supernova? Give your answer in light years, where one light year is the distance light travels in one year. The speed of light is 3.0 x 108 m/s. Express your answer in light years. ► View Available Hint(s) d= IVE ΑΣΦ Submit ? ly
Suppose that during each step, the leg of the student, which is 0.90 meters long, swings through a total distance of 2.0 m. At the end of the swing, this foot rests on the ground for 0.2 s before the other leg begins its swing. a. At what speed does this student walk? (Think carefully about how far forward the student moves at each step.) b. The swinging leg reaches its maximum speed at the bottom of its arc. How many times faster is this maximum leg speed (measured with respect to the ground) than the average walking speed?
Part A Assuming that these spectral lines correspond to the 656.46-nm hydrogen line in the rest frame, estimate the speed V of the center of mass of the binary system. Express your answer in kilometers per second to three significant figures .Part B Determine the mass M of each star. Express your answer in kilograms to one significant figure.
Two 0.56-kg basketballs, each with a radius of 15 cm, are just touching. Part A How much energy is required to change the separation between the centers of the basketballs to 1.0 m ? (Ignore any other gravitational interactions.) Express your answer in joules. ► View Available Hint(s) VE ΑΣΦ - 11 AU= 9.88 10¯ Submit ● Dort R Previous Answers B ] ? X Incorrect; Try Again; 2 attempts remaining J
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Electrons are accelerated through a potential difference of 950 kV, so that their kinetic energy is 9.50x105 eV. Part B What would the speed be if it were computed from the principles of classical mechanics? Express your answer in meters per second.