The number of waves passing the observer per second is

A) the wavelength in angstroms.
B) the amplitude in nm.
C) the frequency in Hertz.
D) the period in seconds.
E) the energy in milliwatts.


C

Physics & Space Science

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If life exists on Mars today, it will most likely be found

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A violation of the second law of thermodynamics would occur if

a. a ball lying on the ground spontaneously moved to the top of a desk. b. an object with low temperature transferred energy in the form of heat to an object with a higher temperature. c. a motion picture was run backwards through the projector. d. any of the above occurred. e. (a) or (b) occurred, but not (c).

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On the H-R diagram, lines of constant radius slants down from left to right

Indicate whether the statement is true or false

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The average intensity of the sunlight in Miami, Florida, is 1060 W/m2. What is the average value of the force exerted on a 16m2 surface that absorbs this light?

A) 7.83 × 10-5 N B) 1.63 × 10-5 N/m2 C) 2.61 × 10-5 N D) 5.65 × 10-5 N E) 0.204 × 10-5 N

Physics & Space Science