When one of the authors was a teenager, the rate of rotation for popular music records on a record player was 45 RPM.

a. Express this rotational velocity in rev/s.


Answer:
a. 75rev/s B=3.75/rev
( rev/min?rev/s;
A=45rpm÷60s=.75rev/s
rev/s×t

Physics & Space Science

You might also like to view...

What process limits a telescope's resolving power?

A. distraction B. reflection C. diffraction D. refraction

Physics & Space Science

Doubling the focal length of the objective lens of a compound microscope will change the magnification by what factor?

a. 4 c. 2 b. 1/4 d. 1/2

Physics & Space Science

You are traveling in a space ship at half the speed of light (0.5c) directly toward an oncoming photon traveling at the speed of light (c). At what speed would you see the photon coming toward you?

A) c B) 0.25c C) 1.5c D) 0.5c

Physics & Space Science

An object is pulled with two forces, 10 N northward and 15 N southward. The magnitude of the net force is

A) 0 N. B) 5 N. C) 10 N. D) 15 N. E) none of the above

Physics & Space Science