What would you see on Earth if you were on the near side of the Moon during a solar eclipse?
What will be an ideal response?
During a solar eclipse, you would see a small circular shadow traveling across a portion of Earth's surface.
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Which of the following statements is not a prediction of the general theory of relativity?
A) Time runs slightly slower on the surface of the Sun than on the surface of Earth. B) The universe can be finite without having boundaries or a center. C) The curvature of spacetime can distort the appearance of distant objects. D) Different observers can disagree about the fundamental structure of spacetime. E) A binary star system with two stars orbiting each other rapidly emits gravitational waves.
The energy from the accretion disk around a black hole would show gravitational redshift due to its immense gravity and tidal distortion of space there
Indicate whether the statement is true or false
A 7.0-kg pipe is hung from a steel wire that is 2.5 m long and has a diameter of 0.75 mm. Young's modulus for steel is 2.0 × 1011 N/m2
(a) By what distance does the wire stretch? (b) If the wire diameter were doubled, what would be the stretch?
A long wire along the x axis is carrying a current increasing at a constant rate in the +x direction. A rectangular coil lies in the x-y plane in the 4th quadrant. In which direction is the induced magnetic field at the center of the rectangular coil?
a. in the –z direction b. There is no direction; the induced current in the coil is zero since the x axis and the coil are in the same plane. c. in the +z direction d. No direction can be found since the orientation of the rectangular coil is not given.