Wide tube that extends down from the bag of solution, which hangs from a pole so that the fluid level is 90.0 cm above the needle. the inner radius of the needle is 0.200 mm. the top of the fluid is exposed to the atmosphere, and the flow rate of the fluid (which has a density of 1025 kg/m^3 and a viscosity of 0.0010 pass) through the needle is 0.200 l/h. what is the average gauge pressure inside the vein where the needle is? use g = 9.8 m/s^2. pa

If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star

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

What caused magnetic fields? what happens if you keep breaking a magnet in two until you reach a single atom?