6. PVC boxes are primarily used in new construction because it is simple to

them to rafters or studs.

A cylindrical water-storage tank has a height of 7.7 m and a radius of 6.0 m. The storage tank is full of water but is vented to the atmosphere. The bottom of the tank is 26 m off the ground.

Which type of room would be better for recording a song one with hard walls or one with soft cushions? Explain why?

One cylinder in the diesel engine of a truck has an initial volume of 650 cm3. Air is admitted to the cylinder at 35 ∘C and a pressure of 1.0 atm. The piston rod then does 450 J of work to rapidly compress the air. A.

Which of the following is NOT an example of an entrepreneur? a. Madeline runs a neighborhood lemonade stand by herself. b. Cindy has a yard sale once a year. c.

An insulated steady-flow mixing chamber has two inlets and 1 outlet. At inlet 1, the mass flow rate is 0.08 kg/s. At inlet 2, the mass flow rate is 0.15 kg/s. The average velocity at the outlet is 12.84 m/s. The area of the outlet is 0.01 m2.

Which renewable sources are growing at the fastest rate? Which renewable source is used to produce most electricity?

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