10. A 1.0-m length of nichrome wire has a radius of 0.50 mm and a resistivity of 1.0 x 100 12.
m. When this wire carries a current of 0.50 A, what is the voltage across its ends?
A) 0.0030 V
B) 0.32 V
C) 0.64 V
D) 1.6 V

Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.