Gravitational _______________ can be used to detect dark matter
Fill in the blank(s) with correct word
lensing
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Discuss the important characteristics that could be revealed if you were to conduct a survey on the family of stars
What will be an ideal response?
A charge Q is uniformly spread over one surface of a very large nonconducting square elastic sheet having sides of length d. At a point P that is 1.25 cm outside the sheet, the magnitude of the electric field due to the sheet is E
If the sheet is now stretched so that its sides have length 2d, what is the magnitude of the electric field at P? A) 4E B) 2E C) E D) E/2 E) E/4
Which of the following best describes the surface of Europa?
A) The surface is comprised of ice with many cracks in it. B) The surface is comprised of very smooth ice. C) The surface is covered by a liquid water ocean. D) The surface is rocky and dry. E) The surface is covered in liquid methane.
A long-term exposure to the sound of a riveting machine can cause your threshold of hearing to shift from 0 dB to 30 dB. What is the sound intensity of a 30-dB sound? The normal lowest detectable intensity is 1.0 × 10-12 W/m2
What will be an ideal response?