Blackbody radiation is caused by an object's ____
a. chemical structure
b. binding energy
c. excitation level
d. absolute zero
e. thermal agitation
e
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Addition by Components: Two perpendicular vectors, src="https://sciemce.com/media/4/ppg__cp1pbb0313192044__f15g1q7g6.jpg" style="vertical-align: -5.0px;" /> will
and 
, are added together giving vector 
. If the magnitudes of both vectors 
and 
are doubled without changing their directions, the magnitude of vector
A. increase by a factor of 8.
B. increase by a factor of 4.
C. increase by a factor of 2.
D. increase by a factor of 
.
E. not change.
Hubble's law can be applied to measure the distance of the constellation of Orion.
Answer the following statement true (T) or false (F)
A string is stretched and fixed at both ends, 200 cm apart. If the density of the string is 0.015 g/cm, and its tension is 600 N, what is the wavelength (in cm) of the first harmonic?
a. 600 b. 400 c. 800 d. 1000 e. 200
Describe the operation of an automobile internal combustion engine in terms of the Otto cycle
What will be an ideal response?