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Maths
6 unit
Define pure substance
The substances which are made up of only one kind of atom is called pure substance.
What is the difference between ∅, {0}, 0, (∅}?
∅ means no element in set.
{0} means there is one element in set which is equal to 0
0 is defined as one element for any set
i do know anything in number work
An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in a plasma.
Find x, if the mean number of children in a family is 4.
Hello there,
Solve this equation to get the answer, X= 6:
(2+4+3+4+1+6+4+5+5+x) / 10 = 4
=> (34 + x) / 10 = 4.
surds
a surd number, esp. the irrational root of an integer
What is venn diagram?
Write details that tell how the subjects are different in the outer circles. Write details that tell how the subjects are alike where the circles overlap.
what is speed of the light?
300000000m/s
Speed of the light
Speed of light: Speed of light In SI system is defined as the distance travelled in metres by the light per second.
Speed of light is directly proportional to refractive index. Because the refractive index of a medium is the ratio of Speed of light in a medium and Speed of light in vacuum.
The speed at which light travels in a vacuum; 299,792,458 meters (or 1,502.62 feet) per second.
Shortly we represent it as 3×10^{8} m/s
= 3×10^{5} km/s
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