Which of the following statements is correct?
a. You only need to know the amount of thermal energy a body contains to calculate its temperature.
b. The temperature of a body is directly proportional to the amount of work the body has performed.
c. The quantity of thermal energy exchanged by two bodies in contact is inversely proportional to the difference in their temperatures.
d. The quantity of thermal energy exchanged by two bodies in contact is directly proportional to the difference in their temperatures.
e. Different amounts of thermal energy are transferred between two bodies in contact if different temperature scales are used to measure the temperature difference between the bodies.
d
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The Milky Way and M31 in Andromeda both belong to the ________
Fill in the blank(s) with correct word
The length of a telescope is 1.60 m and it has a magnification of 60.0. What is the focal length of the eyepiece?
A) 2.62 cm B) 60.0 cm C) 100 cm D) 1.16 cm E) 96.0 cm
Components: A displacement vector is 34.0 m in length and is directed 60.0° east of north. Selecting from the choices in the table below, what are the components of this vector?
A. choice 1 B. choice 2 C. choice 3 D. choice 4 E. choice 5
The kinetic energy of a pendulum is least
a. when its potential energy is least. b. at the top of its swing. c. at the bottom of its swing. d. when its total energy is greatest.