Which of the following is not a unit of work?

a. ft • lb
b. N • m
c. joule
d. watt


d

Physics & Space Science

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Observations and stellar evolution models indicate that the central star of a planetary nebula finally must contract and become a _____

A) yellow giant B) white dwarf C) red giant D) black dwarf

Physics & Space Science

With molar quantity and temperature held constant, by what factor does the pressure of an ideal gas change when the volume is five times bigger?

a. 1/5 b. 1 c. 5 d. 25

Physics & Space Science

Two fireworks explode at the same position on the 4th of July. A stationary observer notices that the time interval between the two events was 5.00 seconds. A second observer flies past the fireworks at a speed of 0.600 c. What value does she obtain when she measures the time interval between the two explosions?

a. 8.33 s b. 6.25 s c. 4.00 s d. 3.00 s e. 5.00 s

Physics & Space Science

Write the number 0.00056 in power of ten notation

A) 5.6 × 10-5 B) 5.6 × 10-4 C) 5.6 × 10-3 D) 5.6 × 10-2 E) 5.6 × 10-1

Physics & Space Science