Which of the following correctly identifies a voltage source and its method of developing electric potential? a. primary cell-heat action on a device b. thermocouple-chemical action c. dry cell-chemical action d. generator-genetic action

If 156 g of magnesium are recovered from the decomposition of 1094.6 g of magnesium chloride, what is the theoretical yield?

Cold feedwater enters a 200-kPa open feedwater heater of a regenerative Rankine cycle at 70°C with a flow rate of 10 kg/s. Bleed steam is available from the turbine at 200 kPa and 160°C.

How much do petroleum engineer make in USA?

Given the two sets, which statement is true? A = {1, 2} B = {1, 2, 3, 4}

The Air Quality Index measures A. the level of carbon monoxide over the previous ten days. B. deterioration in the ozone layer. C. concentration of five air pollutants of concern to health. D. amount that visibility is diminished by smog.

A 63 kg object needs to be lifted 7 meters in a matter of 5 secound. Approximately how much horsepower is required to achieve in the task

If you ere to continue the investigation, what would you suggest as a next step? and Can you determine the identity of an unknown substance by calculating its densitu and observing chemical reactions?

A small cylinder made of a diamagnetic material is brought near a bar magnet. One end of the cylinder is brought near the North pole of the magnet and is repelled.

Which of the following is true about rows of the periodic table? Atomic mass increases from left to right.

Which of these atoms is most likely to share electrons with other atoms?