Find the total amount of heat Q lost through a wall 10' by 18', with R value from q. 1. Inside temperature is 70°F while outside is 45°F.

Helium in a steel tank is at 250 kPa, 300 K with a volume of 0.1m3. It is used to fill a balloon of helium. When thetank pressure drops to 150 kPa, the flow of helium stops by itself.

Fixed objects that fix a location are called

True or False: Drag and tailwind are examples of a contact force. tyy guyss

Which of the following would NOT be considered a job of a manager in the manufacturing field? A. hands-on assembly of the company's product B. oversee safety regulations of machinery C. supervision of the disposal of hazardous waste and materials D.

How does an airfoil create lift?

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