Physics, 17.04.2020 19:03 maycigrimaldi4990
Sig. gif?tid=2M68-7D-94-42-ABFD-18787 At the end of their lives, very massive stars explode in a supernova, which can be powerful enough to outshine the entire rest of thier host galaxy - around 5.0 Ă— 1037 W. Suppose such a star is 950 times brighter than our Sun, which has a power of 4.0 Ă— 1026 W, and suddenly goes supernova.
By what factor does the power of the massive star increase when it turns into a supernova?
Answers: 3
Physics, 22.06.2019 09:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 1
Physics, 22.06.2019 11:00
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
Answers: 3
Physics, 22.06.2019 11:30
What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole
Answers: 3
Physics, 22.06.2019 16:00
The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.
Answers: 2
Sig. gif?tid=2M68-7D-94-42-ABFD-18787 At the end of their lives, very massive stars explode in a sup...
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