Why was copernicus’s heliocentric model not believed until galileo and kepler provided more evidence?
a. the model had the moon orbiting earth.
b. the model was against religious teachings.
c. the model could not explain retrograde motion.
d. the model did not include all eight planets in the solar system.

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Why do different substances have diffrent properties

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