Solve the problem.The power that a resistor must dissipate is jointly proportional to the square of the current flowing through the resistor and the resistance of the resistor. If a resistor needs to dissipate  of power when  of current is flowing through the resistor whose resistance is  find the power that a resistor needs to dissipate when -4.0px;" /> of current are flowing through a resistor whose resistance is 



A. 252 watts

B. 126 watts

C. 294 watts

D. 42 watts


Answer: A

Mathematics

You might also like to view...

Solve. Round to the nearest percent if necessary.A company increased the number of its employees from 110 to 132. What was the percent of increase?

A. 120% B. 22% C. 20% D. 17%

Mathematics

Solve.A coil of wire rotating in a magnetic field induces a voltage given by  where t is time in seconds. Find the smallest positive time to produce a voltage of 10.

A. 2.8? sec B. 3? sec C. 3 sec D. 2.8 sec

Mathematics

Multiply. 

A.
B.
C.
D.

Mathematics

Find the quotient and the remainder.x2 + 2x - 45 divided by x + 8

A. x - 3; remainder 6 B. x + 6; remainder 3 C. x - 6; remainder 3 D. x - 6; remainder 0

Mathematics