Newton's laws of motion apply only to objects experiencing the force of gravity. They do not apply to objects experiencing a magnetic force.
Answer the following statement true (T) or false (F)
False
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A fire fighting vehicle of mass 12,000 kg is at rest but free to roll with no resistance. If you push it forward with a force of 500 N, the momentum at the end of 10 s of pushing will be
A. 5000 kg m/s. B. zero. C. 20,000 kg N/s. D. 0.416 m/s.
Faraday's Law: A circular conducting loop with a radius of 0.50 m and a small gap filled with a 10.0-? resistor is oriented in the xy-plane. If a uniform magnetic field of 1.0 T, making an angle of 30? with the z-axis, increases to 10.0 T, in 4.0 s, what is the magnitude of the current that will be caused to flow in the loop if it has negligible resistance?
A. 0.015 A B. 0.088 A C. 0.15 A D. 0.13 A
Electrical resistance is greater for
A) dry skin. B) wet skin. C) both the same
Two long straight parallel lines of charge, #1 and #2, carry positive charge per unit lengths of ?1 and ?2, respectively. ?1 > ?2. The locus of points where the electric field is zero in this case is
A) along a line between the lines closer to line #2 than line #1. B) at a point halfway between the lines. C) along line #1. D) along a line between the lines closer to line #1 than line #2. E) cannot be determined