What does temperature measure?
A) the average kinetic energy of particles in a substance
B) the average mass of particles in a substance
C) the total potential energy of particles in a substance
D) the total amount of heat in a substance
A) the average kinetic energy of particles in a substance
You might also like to view...
A wave on a string has a wavelength of 0.90 m at a frequency of 600 Hz. If a new wave at a frequency of 300 Hz is established in this same string under the same tension, what is the new wavelength?
a. 2.7 m c. 0.45 m b. 1.8 m d. 0.30 m
A sample containing 4.0 × 1018 atoms of a radioactive isotope decays with a half-life of 2.3 years. How many undecayed atoms are left after 3.7 years?
A) 2.5 × 1018 B) 1.7 × 1018 C) 1.3 × 1018 D) 1.1 × 1018
Kepler's third law, p2 = a3, means that
A) a planet's period does not depend on the eccentricity of its orbit. B) all orbits with the same semimajor axis have the same period. C) the period of a planet does not depend on its mass. D) planets that are farther from the Sun move at slower average speeds than nearer planets. E) All of the above are correct.
A 50.0-mH inductor is connected in series with a 2500-? resistor in an ac circuit. What is the phase angle at 3000 Hz?
A) 90.0° B) -20.7° C) -75.9° D) 20.7° E) 75.9°