A current in a solenoid with N turns creates a magnetic field at the center of that loop. The field strength is directly proportional to:
a. current strength.
c. Both choices A and B are valid. b. number of turns in the loop.
d. None of these choices are valid.
C
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A 90.0 N crate of apples sits at rest on a ramp that runs from the ground to the bed of a truck. The ramp is inclined at 20 
to the ground. What is the force exerted on the crate by the ramp?
A. 86.9 N B. 84.6 N C. 75.8 N D. 30.8 N E. 38.5 N
The Big Bang formed
A) only hydrogen. B) only helium. C) hydrogen and helium, but nothing else. D) all elements up to iron. E) all elements found in nature now.
A steel beam (E 5 210 GPa) with I 5 119 3 106 mm4 and span length L 5 3.5 m is subjected to uniform load q 5 9.5 kN/m. The maximum deflection of the beam is approximately:
(A) 10 mm
(B) 13 mm
(C) 17 mm
(D) 19 mm
Each subsidiary page at a website should use unique elements, such as font or color scheme, to promote visual identity.
Answer the following statement true (T) or false (F)