Your temperature is 98.6°F. Assuming your skin is a perfect radiator (? = 1), determine the wavelength corresponding to the largest intensity (in ?m)
a. 8.0
b. 9.3
c. 3.0
d. 5.7
e. 29.4
b
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Relativity predicts that everything in the universe is relative
A) except the laws of nature, which are absolutes B) except the speed of light, which is an absolute C) ast here are no absolutes D) except the laws of nature and the speed of light, which are absolutes
Two parallel conductors each of 0.34 m length, separated by 6.4 × 10^?3 m and carrying 4.8 A in opposite directions, will experience what type and magnitude of mutual force? (magnetic permeability in empty space µ0 = 4? × 10^?7 T?m/A)
a. attractive, 2.1E–3 N b. repulsive, 2.1E–3 N c. attractive, 2.4E–4 N d. repulsive, 2.4E–4 N e. zero
On a force vs. position graph, the area under curve is a representation of
A) force. B) position. C) kinetic energy. D) potential energy. E) work.
Glycerin, with a viscosity of 1.50 Ns/m2, is flowing with an average speed of 1.20 m/s through a tube that has a radius of 5.00 mm and is 25.0 cm long. What is the drop in pressure?
A) 144 kPa B) 45.8 kPa C) 72.0 kPa D) 76.3 kPa E) 129 kPa