You measure the temperature of two objects and one of them is warmer than the other. From this you can conclude
1.that the warmer object contains more heat than the cooler object.
2.that the warmer object contains more internal energy than the cooler object.
3.that the warmer object was heated for a longer period of time than was the cooler object.
4.none of these statements.
4
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Why is Saturn's moon Titan able to retain an atmosphere?
a. Titan only contains light gases which are easy to retain. b. Titan has a large enough mass and is cold enough. c. Titan is biologically active. d. It is so close to Saturn that Saturn's gravity retains Titan's atmosphere.
Water slowly evaporates from your skin.
C. Consistent D. Inconsistent
This design involves only one optical surface, a concave mirror
A) prime focus reflector B) Newtonian reflector C) Cassegrain reflector D) Gregorian reflector E) refractor
Scientists were led to postulate the existence of the neutrino in order to
A) maintain the conservation of energy and of momentum in beta decay. B) provide a mechanism for quark production. C) account for alpha decay. D) explain the intense radiation emitted by quasars.