The rotational velocity of a 45 rev/min phonograph record in rad/s is approximately
A. 0.75 rad/s.
B. 15.7 rad/s.
C. 283 rad/s.
D. 45 rad/s.
E. 4.7 rad/s.
Answer: E
You might also like to view...
Venus is most like Earth in terms of size
a. True b. False Indicate whether the statement is true or false
Which of the following best describes rain on Venus?
A) It does not have rain. B) It has sulfuric acid rain that causes erosion on the surface. C) It has sulfuric acid rain in its atmosphere, but the drops evaporate before hitting the surface. D) It has liquid water rain that causes erosion on the surface.
The Sun's average surface (photosphere) temperature is about
A) 5,800 K. B) 1,000,000 K. C) 1,000 K. D) 37,000 K.
If a monochromatic light beam with quantum energy value of 4.0 eV is incident upon a photocell where the work function of the target metal is 1.60 eV, what is the maximum kinetic energy of ejected electrons?
a. 4.6 eV c. 2.4 eV b. 4.8 eV d. 1.4 eV