Taden has found a table of the atmospheric layers of the Sun. However, he can’t make out the names of the layers in the chart. A 4 column by 3 row table. Column one is untitled with the following entries: Position, Thickness, Temperature. Column 2 is titled A with the following entries: Lowest, 100 kilometers, 5,500. Column 3 is titled B with the following entries: Middle, 2000 kilometers, 6,000 to 20,000. Column 4 is titled C with the following entries: Outermost, Millions of kilometers, 2,000,000.What are the names of the Sun’s layers described in columns A, B, and C?

A: Corona; B: Photosphere; C: Chromosphere
A: Core; B: Chromosphere; C: Photosphere
A: Chromosphere; B: Corona; C: Core
A: Photosphere; B: Chromosphere; C: Corona

Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)

What was the first instrument to ever record an earthquake?

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?