For a point on a spinning disc in uniform circular motion, which of the following is not constant?

a. Its angular speed.
b. Its angular acceleration.
c. Its centripetal acceleration.
d. The magnitude of its total acceleration.


c

Physics & Space Science

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The cosmic microwave background is the total of all the radio emissions from all the galaxies and quasars in the universe

Indicate whether the statement is true or false

Physics & Space Science

A 400-? resistor and a capacitor are connected in parallel across a 300-Hz source. If the amplitude of the current in the resistor is equal to that in the capacitor, what is the value of the capacitance?

a. 1.33 ?F b. 0.750 ?F c. 10.6 ?F d. 0.212 F

Physics & Space Science

CP titanium alloys are primarily solid solution strengthened by the addition of the element _________.

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

The warmth you feel from the Sun at the beach is an example of

a. heat conduction. b. heat convection. c. heat radiation. d. thermal expansion. e. none of the above.

Physics & Space Science