A museum sets up a display of fluorescent minerals. Which best describes how electromagnetic waves can be used to enhance the display?

1. Infrared light shining on the minerals will cause them to give off visible light.
2. Visible light shining on the minerals will cause them to give off infrared light.
3. Ultraviolet light shining on the minerals will cause them to give off visible light.
4. Visible light shining on the minerals will cause them to give off ultraviolet light.

J. j. thomson’s experiment disproved the theory that an atom

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

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.