Answer: A little more that 5 Kg for a healthy person
Explanation: First, we know the following:
The regular adult has from 9 to 12 pints of blood. This is around 5 liters for a healthy male adult.
The human body is composed mostly on water, around 80%.
Blood is mostly composed on plasma, which makes blood thicker than water.
Knowing that, almost all the body is compose of water, it is safe to think that blood density should be near to that of water but higher.
The density on water is a know value. Which makes the following true:
<em>1 Liter of Water weights 1 Kg</em>
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It could be said then, that the total mass of blood for a healthy person should be a little more that 5 kgs.
The amplitude of a wave tells us about the intensity or brightness of the light relative to other light waves of the same wavelength.
Answer:
work done by fuel is conversion of chemical energy into mechanical whereas work done by moving object is due to its displacement by the application of force. actually, both of them give same meaning
Answer:
True
Explanation:
The products of a reaction are determined by the type of chemical reaction that are taking place. This is very true.
In chemical reactions, bonds are broken and atoms re-arranged to form new products.
- By virtue of this, we can predict and know the kind of permissible combinations that can take place.
- There are different kinds of chemical reaction.
- They are synthesis, decomposition, single displacement, double displacement reactions e.t.c
- Knowing these reactions gives insight into the likely products we can obtain.