Ametallic laboratory spring is typically 5.00 cm long and 0.150 cm in diameter and has 50 coils.
part a
if you connect such a spring in an electric circuit, how much self-inductance must you include for it if you model it as an ideal solenoid?
express your answer to three significant figures and include the appropriate units.

What structural formula represents 4 electrons shared between two atoms?

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.