The Canadair CL415 is a rescue and fire-fighting aircraft of the Civil Protection; it is able to collect water from the sea or lakes to discharge it on the fire front. During the filling phase it flies on the surface of the water at 130 km / h and in 12 seconds it charges 6100 L of water. Calculate the impulse and the additional mean force
which must supply its engines during a
filling.

show explanation ​

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