Two opposite poles repel each other

An electric heater draws 12 A from a 120 V power source. How much powe heater dissipate? (a) 10 W (b) 1200 W (c) 1440 W (d) 17,280 W

A platinum resistance temperature sensor has a resistance of 120 Ω at 0℃ and forms one arm of a Wheatstone bridge. At this temperature the bridge is balanced with each of the other arms being 120 Ω.

To improve safety in operation most improvements have centered around what pieces of the system, give specific pieces and improvements

Name four rules that will control or eliminate cavitation of a pump

XYZ Company purchased a new machine on January 1, 2020 for $160,000. The machine was assigned a 40-year life and a $3,000 residual value. XYZ Company will depreciate the machine using the double-declining balance depreciation method.

Air is compressed in the compressor of a turbojet engine. Air enters the compressor at 270 K and 58 kPa and exits the compressor at 465 K and 350 kPa. Take the average specific heat at constant pressure (cp, avg) of air as 1.015 kJ / kg.

A digital-to-analog converter uses a reference voltage of 120 V dc and has eight binary digit precision. In one of the sampling instants, the data contained in the binary register = 01010101.

What is a perpetual motion machine of the second kind?

What happens when you turn a jack

Disconnecting means shall be capable of being locked in the open position. The provisions for locking do not have to reamin in place. A. True B. False