An electrician needs to use a wire with the least resistance. Which of the following aluminum wires would have the least resistance? A.
a wire measuring 20 cm in length and 3 cm in diameter

B.
a wire measuring 20 cm in length and 5 cm in diameter

C.
a wire measuring 5 cm in length and 3 cm in diameter

D.
a wire measuring 5 cm in length and 5 cm in diameter

When a resistor with resistance r is connected to a 1.50-v flashlight battery, the resistor consumes 0.0625 w of electrical power. (throughout, assume that each battery has negligible internal resistance.) what power does the resistor consume if it is connected to a 12.6-v car battery? assume that r remains constant when the power consumption changes.

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?