Answer:
Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells.
Explanation:
Chemical digestion begins in the mouth when food mixes with saliva. Saliva contains an enzyme (amylase) that begins the breakdown of carbohydrates.
4. E=mc²
Explanation:
The best approximation of the energy released during a nuclear fusion process can best be determined using the Einstein equation.
In nuclear reactions, mass and energy are equivalent:
E = mc²
E is the energy
m is the mass
c is the speed of light
- In nuclear reactions, some of the mass is converted into the energy.
- Therefore mass is not conserved in such equations.
- This is why they release huge amount of energy.
- From this equation, we know that the more mass loss, the more the energy that would be produced.
- In a fusion reaction, two light nuclei combines to form a heavier one.
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Explanation:
Cuando se queman los fósiles, el carbón e hidrógeno reaccionan con el oxígeno produciendo dióxido de carbono (CO2) y agua (H2O). Durante esta reacción se produce calor. La electricidad se genera mediante la transformación de energía mecánica (calor) con energía eléctrica por medio de una turbina o generador.
Answer:
Wow! really? I have heard of it but I never believed it. After you wrote this, I searched it up and it's true
thanks for the fun tidbit! :)
Explanation:
