What quantities determine the resistance of a piece of material? choose all that apply.
the length of the piece of material
the cross-sectional area of the piece of material
the type of material
the voltage across the material
the current flowing through the piece of material

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

Which of these metals are magnetic?

The second largest public utility in the nation is the sole provider of electricity in 32 counties of southern florida. to meet the monthly demand for electricity in these counties, which is given by the inverse demand function p = 1,200 – 4q, the utility company has set up two electric generating facilities: q1 kilowatts are produced at facility 1, and q2 kilowatts are produced at facility 2 (so q = q1 + q2). the costs of producing electricity at each facility are given by c1(q1) = 8,000 + 6q12 and c2(q2) = 6,000 + 3q22, respectively. determine the profit-maximizing amounts of electricity to produce at the two facilities, the optimal price, and the utility company’s profit