The mass of one atom would best be measured in this unit:
1 answer:
Answer:
mass of one atom is measured in the unit of 1 amu
Explanation:
As we know that the mass of one atom is very small and it is of order of
here we know that 1 amu is defined as 1/12 part of mass of 1 atom of C-12 isotope
so here we will have
so here we can say that mass of one atom is measured in the unit of 1 amu
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Answer:
5.1 m/s
Explanation:
The figure is missing: find it in attachment.
In order to find the average speed, we have to calculate the length of the total path, and divide it by the total time elapsed.
The curve from A to B is a quarter of a circle with a radius of r = 20 m, so its length is:
The path BC is the hypothenuse of a right triangle with sides equal to 20 m and 30 m, so its length is
Finally, the length of the path AC is the sum of the side of 30 m and the radius of the curve, so
So the total distance covered is
The total time elapsed is
So, the average speed is
Explanation:
A) use the formula:
B) use the formula:
with angular velocity u calculated in A)