A beam is under stress when it carries a load. The part of a beam where no tension or compression occurs is the
A) upper or lower flange.
B) neutral layer.
C) neither of these
Answer: B
Physics & Space Science
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The law of reflection applies to
a. specular reflection. b. diffuse reflection. c. irregular reflection. d. all of these.
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Which planet has a temperature of 400 degrees Centigradeon the side facing the Sunand -180 degrees Centigrade on the side opposite the Sun?
a) Mars b) Venus c) Earth d) Jupiter e) Mercury
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We have a hollow metallic sphere with charge +5.0 µC and radius 5.0 cm. We insert a -10 µC charge at the center of the sphere through a hole in the surface. What charge now rests on the outer surface of the sphere?
a. +10 µC c. -5 µC b. +5 µC d. +15 µC
Physics & Space Science
Why are more massive planets circling stars easier to detect than low-mass planets?
What will be an ideal response?
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