Chemical reactions happen when you breathe, eat, drink, etc. Chemical reactions make you go through puberty, chemical reactions makes things enjoyable, or sad. Chemical reactions happen in batteries, cellphones, computers, vehicles.
<span>Chemical reactions are everywhere and too numerous for me to think about all the possibilities.</span>
How can one explain<span> and predict the </span>interactions between objects<span> and within a system of </span>objects<span>? ... through </span>electric or magnetic fields to illustrate the forces between objects and the changes in energy of the objects due to the interaction<span>. ... </span>Forces<span> at a distance are </span>explained<span> by fields (gravitational, </span>electric<span>, and magnetic) ...</span>
Answer:
=20 turns
Explanation:
The given case is a step down transformer as we need to reduce 120 V to 6 V.
number of turns on primary coil N_{P}= 400
current delivered by secondary coil I_{S}= 500 mA
output voltage = 6 V (rms)
we know that
putting values we get
to calculate number of turns in secondary
therefore, =20 turns
Answer:
42.4m/s
Explanation:
To develop the problem it is necessary to apply the concepts related to thermodynamic work and Bernoulli's principle in which the behavior is described of a liquid moving along a stream.
The work of an incomprehensible liquid is given by the equation,
Where,
= Mass flow
= Specific Volumen
P = Pressure
Our values are given by,
= 2kW
Table 1 for saturated water in 10°C
We need to find the mass flow, then re-arrange for
To find the Spray velocity, we apply Bernoulli equation, because at the Nozzle there is not Work or Heat transfer related. Then,
Therefore the spray velocity is 42.4m/s