Physics, 03.08.2019 19:30 ligittiger12806
How would an astronomer explain the difference between the two spectra? a. hydrogen gives off light differently if star is more distant b. light traveling through space is warped by the vacuum c. the star is traveling away from us, lengthening the light waves d. the star is fusing a different kind of hydrogen than the sun.
Answers: 1
Physics, 23.06.2019 06:30
If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be a. equal to the weight of the car. b. less than the force of friction exerted upon the car. c. equal to the force of friction exerted upon the car. d. greater than the weight of the car.
Answers: 1
Physics, 23.06.2019 06:50
The results of huy's eye exam show that he is nearsighted. which explanation should huy expect to hear? "you need convex lenses to shorten the distance that light takes to focus in your eyes." "you need concave lenses to shorten the distance that light takes to focus in your eyes." "you need convex lenses to lengthen the distance that light takes to focus in your eyes." "you need concave lenses to lengthen the distance that light takes to focus in your eyes."
Answers: 1
Physics, 23.06.2019 13:00
Electromagnetic force is present when electromagnetic fields a.become charged as they lose electrons. b.become stable as they come in contact with other forces. c. interact with charged particles. d.gain energy from other forces.
Answers: 2
How would an astronomer explain the difference between the two spectra? a. hydrogen gives off light...
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