"All distant galaxies are moving away from us, and the farther away a galaxy is from us, the faster it is moving" is a statement of ______________ law
Fill in the blank(s) with correct word
Hubble's
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A 3.00-kg stone is dropped from a 39.2 m high building. When the stone has fallen 19.6 m, the magnitude of the impulse the Earth has received from the gravitational force exerted by the stone is
A.
s.B.
s.C.
s.D.
s.E.
s.Given that the planet orbiting the nearby star 51 Pegasi is about 20X larger than the Earth, but 400X more massive, on that world you would weigh:
A) the same as you do here. B) twice as much as you do here. C) half as much as you do here. D) 20X more that you do here. E) 400X more than you do here.
A nearsighted person has a near point of 12. cm and a far point of 17. cm. If the lens is 2.0 cm from the eye: (a) what lens power will enable this person to see distant objects clearly? (b) what then will be the new near point?
What will be an ideal response?
The ratio of energy to frequency for a given photon gives
A) its amplitude. B) its velocity. C) its wavelength. D) Planck's constant. E) its work function.