How do I get around Apple screen time and app restrictions

Water flows at a rate of 0.040 m3 / s in a horizontal pipe whose diameter is reduced from 15 cm to 8 cm by a reducer.

What are the type of drainage

An adiabatic heat exchanger is to cool ethylene glycol (cp = 2.56 kJ/kg ºC) flowing at a rate of 2 kg/s from 80 to 40 ºC by liquid water that enters at 20 ºC and leaves at 55 ºC.

4-How often NFPA update the NEC

An electric motor under steady load draws 9.7 amperes at 110 volts; it delivers 1.25 (hp) of mechanical energy. The temperature of the surroundings is 300 K. What is the total rate of entropy generation in W·K-1?

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