The temperature of a quantity of an ideal gas is
a. one measure of its ability to transfer thermal energy to another body.
b. proportional to the average molecular kinetic energy of the molecules.
c. proportional to the internal energy of the gas.
d. correctly described by all the statements above.
e. correctly described only by (a) and (b) above.
d
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When light goes from a material with a lower index of refraction n1 into a material with a higher index of refraction n2 with an angle of incidence of which of the following is true?
A. the angle of refraction is more than
B. the angle of refraction is less than
C. total internal reflection may occur
D. the angle of refraction is more than
and total internal reflection may occur
E. the angle of refraction is less than
and total internal reflection may occur
In a mass spectrometer, an ion will have a smaller radius for its circular path if
a. its speed is greater. b. its mass is greater. c. its charge is greater. d. the magnetic field is weaker.
Spherical Mirrors: An object 2.0 cm tall is placed 24 cm in front of a convex mirror having a focal length of magnitude 30 cm.(a) Where is the image formed and how far is it from the mirror?(b) How tall is the image?
What will be an ideal response?
Globular clusters are used as spiral tracers
a. True b. False Indicate whether the statement is true or false