Describe the properties of space in the vicinity of a black hole
What will be an ideal response?
The geometry of space is warped or curved near a black hole. The gravitational field is so overwhelmingly large that the curvature of space is extreme, so extreme that space folds over on itself at the event horizon. Further away from the black hole, gravity from it is weaker and the curvature of space is less.
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How do we know that there is an insignificant amount of dark matter in the solar system?
What will be an ideal response?
When waves interfere, the result is ________ original waves ("they interfere")
A) always smaller than B) always larger than C) always the same as D) sometimes smaller than, sometimes larger than
The force required to move a 90.0 kg object in a 85.0 m circle at a constant speed of 8.10 m/s is
a. 0.0 N b. 69.5 N c. 0.77 N d. 8.58 N
In a transition from one vibrational state to another, a molecule emits a photon of wavelength 5.56 µm
What is the energy difference between these two states? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J) A) 13.6 MeV B) 13.6 eV C) 0.223 eV D) 0.223 MeV E) 2.23 MeV