Of photons of red, yellow, light, and blue light, which photons have the greatest energy?
a. red
b. yellow
c. green
d. blue
d
Physics & Space Science
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What evidence do we have that large galaxies cannibalize small galaxies?
What will be an ideal response?
Physics & Space Science
A 2.0-kg object moving with a velocity of 5.0 m/s in the positive x direction strikes and sticks to a 3.0-kg object moving with a speed of 2.0 m/s in the same direction. How much kinetic energy is lost in this collision?
a. 2.4 J b. 9.6 J c. 5.4 J d. 0.6 J e. 6.0 J
Physics & Space Science
Nylon is a polyamide; Dacron is a(n) ______________
Fill in the blank(s) with correct word
Physics & Space Science
Pensacola, Florida lies at a latitude of 30 degrees north. Where is Polaris in its sky?
What will be an ideal response?
Physics & Space Science