Explanation:
a.)
Reactants : CO2 (carbondioxide) + H2O (water)
Products : O2 (oxygen) + C6H12O6 (glucose)
b.)
Reactants: Na ( Solid Hydrogen) + H2O (water)
Products: H2 (hydrogen gas) + NaOH (sodium hydroxide)
Answer:
Option B, to establish the reference polarity for induced voltages
Explanation:
Dot basically indicates the polarity of the electrical windings. Currents entering and leaving the same dotted ends will produce magnetic flux in same direction while the current entering at one dotted end and leaving at another dotted end will produce opposing magnetic flux.
Thus it is clear that dot represents the terminals having same phases of induced AC voltages so that only one winding is loaded at a time.
Hence, option B is correct
Answer:
1250![\sqrt{3}](https://tex.z-dn.net/?f=%5Csqrt%7B3%7D)
Explanation:
Let's look at this in a simple manner, because it is.
The crane weights 250Kg. Okay.
Since it is hung, there is the acceleration of gravity being applied on it (10m/s²)
Since F = m * a
F = 250 * 10
F = 2500
Now we know that the downward Force is 2500N.
To find the force that is being applied on that 30° angle, we can multiply our 2500N by cos30°, which happens to be
.
Therefore, the force pulling the box in the cable's direction is:
![\frac{2500\sqrt{3} }{2} = 1250\sqrt{3}](https://tex.z-dn.net/?f=%5Cfrac%7B2500%5Csqrt%7B3%7D%20%7D%7B2%7D%20%20%3D%201250%5Csqrt%7B3%7D)
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<em>If you have any questions feel free to comment.</em>
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<em>Have a great one and mark brainliest if it helped, please</em>