A diver runs horizontally with a velocity of 1.20 m/s off a platform that is 4.0 meters above the surface of the water. a. What is her horizontal displacement relative to the end of the platform?
b. What is her horizontal velocity the instant before she touched the water?
c. What is her vertical velocity the instant before she touches the water?

(Please help!)

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

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

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge