Physics, 15.01.2020 22:31 lolorichards123
The intensity of light from a star (its brightness) is the power it outputs divided by the surface area over which it’s spread: i = p 4πd2 . suppose two stars of the same apparent brightness i are also believed to be the same size. the spectrum of one star peaks at 750 nm while the other peaks at 450 nm. use wien’s law and the stefan-boltzmann equation to estimate their relative distances from u
Answers: 3
Physics, 22.06.2019 03:00
If a spring has a k value of 100 newtons per meter and it is stretched 0.50 meters, what is the restoring force of the spring?
Answers: 2
Physics, 22.06.2019 19:00
The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?
Answers: 1
Physics, 22.06.2019 21:50
Determine the moment of the force f about an axis extending between a and c. express the result as a cartesian vector. a is at the origin, c is at (4,3,0) and f = (4i + 12j -3k) lb coming out of b (4,3,-2).
Answers: 2
The intensity of light from a star (its brightness) is the power it outputs divided by the surface a...
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