The answer is SALIVA Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach. The digestive system fuels the cells and the excretory system rids the body of the cells' waste.
It starts or speeds up.
Some substances need certain amount of energy in order to react with each other.
The atomic number of an atom is the number of protons in its nucleus.
If the silicon atom has an atomic number of 14, then there are 14 protons
in its nucleus.
The mass number of the atom is the total number of (protons + neutrons)
in its nucleus. If the silicon atom has a mass number of 28, and we know
that 14 of those are protons, then neutrons account for the other (28 - 14)
= 14 neutrons.
You may be wondering about all the electrons whizzing around the nucleus.
That's an excellent question, one that I thought you weren't going to ask.
In a neutral atom, the number of electrons is the same as the number of
protons, so their number is the same as the atomic number.
Regarding the atom's mass, the electrons make just about zero difference ...
one neutron or one proton has the mass of about 1840 electrons, so there's
practically no difference if we ignore the electrons completely.
Answer:
Spring constant, k = 1.16 N/m
Explanation:
It is given that,
Mass of the air track, m = 0.2 kg
Time, t = 2.6 s
Let T is the time period of the spring. The expression for the time and spring constant is given by :
k = 1.16 N/m
So, the spring’s force constant is 1.16 N/m. Hence, this is the required solution.
Answer:
The magnitude of the magneticfield B[T] at a point on the surface of the earth directly below the power line is B=1.496x10^(-6) T.
Explanation:
The distance from the wire to a point in the surface is the heigth of the wire.
The formula for the magnetic field on any point at distance R from a wire conducting alternating current is: