Quiz9_a-d

# Quiz9_a-d - Cos(60) = 1/2 Sin(60) = 3 / 2 Tan(60)= 3...

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Cos(60°) = 1/2 Sin(60°) = 2 / 3 Tan(60°)= 3 Cos(30°) = 2 / 3 Sin(30°) =1/2 Tan(30°)=1/ 3 Cos(45°) = 2 / 2 Sin(45°) = 2 / 2 Tan(45°)=1

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NAME: __________________________________________ Quiz #9a: Phys270 1. [ 10 pts] A 20.0-cm-diameter blackbody radiating sphere is glowing red, but a spectrum shows that its emission spectrum peaks at an infrared wavelength of 1.0 mm. How much power does the sphere radiate?
Cos(60°) = 1/2 Sin(60°) = 2 / 3 Tan(60°)= 3 Cos(30°) = 2 / 3 Sin(30°) =1/2 Tan(30°)=1/ 3 Cos(45°) = 2 / 2 Sin(45°) = 2 / 2 Tan(45°)=1

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NAME: __________________________________________ Quiz #9b: Phys270 1. [ 10 pts] To initiate a nuclear reaction, an experimental nuclear physicist wants to shoot a proton into a 12 C nucleus. The proton must impact the nucleus with a kinetic energy of 3.00 MeV. The nuclear radius is 3.00 fm. You can assume the nucleus remains at rest and the proton’s velocity is non-relativistic. [Note: 1 eV = 1.6 x 10 ‐19 J] a. [5 pts] With what speed must the proton be fired toward the target?
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## This note was uploaded on 12/26/2011 for the course PHYSICS 270 taught by Professor Drake during the Fall '08 term at Maryland.

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Quiz9_a-d - Cos(60) = 1/2 Sin(60) = 3 / 2 Tan(60)= 3...

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