The mechanical advantage of an inclined plane is 10. The length of the ramp is 44 m. The inclined plane is used to lift a fridge, with a mass of 82 kg, to a height of 4 m. a). How much force would a mover need to apply to get the fridge up the inclined plane(use 9.81 m/s2 as the acceleration de to gravity)? b). What is the efficiency of the inclined plane?

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