How does the solar nebula theory account for the presence of comets?
What will be an ideal response?
Comets are understood to be left over from the origin of the planets.
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The exit velocity is 12 m/s. The inlet velocity of the water is nearest:
(A) 6.31 m/s
(B) 4.32 m/s
(C) 3.95 m/s
(D) 3.24 m/s
A double-convex thin lens is made of glass with an index of refraction of 1.52. The radii of curvature of the faces of the lens are 60 cm and 72 cm. What is the focal length of the lens?
A) 70 cm B) 63 cm C) 75 cm D) 66 cm E) 58 cm
A piston compresses a gas, while at the same time heat is lost to the surroundings. The temperature of the gas rises. This is governed by the second law of thermodynamics
Indicate whether the statement is true or false
Partially decomposed organic matter in the soil is
What will be an ideal response?