The first electricity producing wind turbine was invented in what year?*

-1776

-1808

-1888

-1978

11. A heat engine operates between two reservoirs at 800 and 20°C. One-half of the work output of the heat engine is used to drive a Carnot heat pump that removes heat from the cold surroundings at 2°C and transfers it to a house maintained at 22°C.

Suppose a transmitter produces 50 W of power. (a) Express the transmit power in units of dBm and dBW. (b) If the transmitter's power is applied to a unity gain antenna with a 900-MHz carrier frequency, what is the received power in dBm at a free

A 35-pound force is applied to a 3-inch cylinder with a 6-inch stroke. What is the power produced by the cylinder that moves its full stroke in 0.7 s?

How does google translate work and why did they create it ... random and stupid question

The air standard efficiency ofan Otto cycle compared to diesel cycle for thie given compression ratio is: (a) same (b) less (c) more () more (d) unpredictable (d) e) more or less depending on power rating

Explain why it is important to understand hydrostatic forces on surfaces when designing scuba gear, particularly oxygen tanks, for deep sea divers.

2. A trapezoidal channel has a bottom width of 4 m and side slopes of 2:1 (H:V). If the flow rate is 50 m3/s at a depth of 3.6 m, report whether the flow is subcritical or supercritical.

A square steel bar has a length of 7.2 ft and a 2.5 in by 2.5 in cross section and is subjected to axial tension. The final length is 7.20532 ft. The final side length is 2.49946 in.

Unit 6 - Quiz 1 GO 3. When testing for loose Wheel Bearings you should: A. Testing is inconclusive, just replace them. B. Rock the wheel back and forth from the 3:00 and 9:00 positions C. Turn the steering wheel 45 degrees in each direction D.

Is a gas turbine a heat engine?