Two insulated current-carrying straight wires of equal length are arranged in the lab so that Wire A carries a current northward and Wire B carries a current eastward, the wires crossing at their midpoints separated only by their insulation. Which of the following statements are true?
a. The net force on Wire B is southward.
b. The net force on Wire A is westward.
c. There are no forces in this situation.
d. There are forces, but the net force on each wire is zero.
d
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A. 45.60 nm B. 91.20 nm C. 121.5 nm D. 240.1 nm E. 365 nm
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Answer the following statement true (T) or false (F)
Two balls, one of radius R and mass M, the other of radius 2R and mass 8M, roll down an incline. They start together from rest at the top of the incline. Which one will reach the bottom of the incline first?
A) The small sphere B) Both reach the bottom together. C) The large sphere D) It depends on the height of the incline. E) It depends on the length of the inclined surface.
The buoyant force that acts on a 10-ton ship floating in the ocean is
A) less than 10 tons. B) 10 tons. C) greater than 10 tons. D) depends on the density of seawater