Advertisements
Advertisements
प्रश्न
Write the following numbers in the usual form:
3 × 10−8
Advertisements
उत्तर
3 x 10−8 = 3/108 = 3/10,00,00,000 = 0.00000003
संबंधित प्रश्न
Express the number appearing in the given statement in standard form.
Size of a bacteria is 0.0000005 m
In a stack, there are 5 books each of thickness 20 mm and 5 paper sheets each of thickness 0.016 mm. What is the total thickness of the stack?
Express the following numbers in standard form:
6020000000000000
Write the following numbers in the usual form:
3.61492 × 106
The standard form for 0.000000008 is ______.
The usual form for 2.3 × 10–10 is ______.
Divide 293 by 10,00,000 and express the result in standard form.
Express the following in standard form:
Express 2 years in seconds.
The volume of the Earth is approximately 7.67 × 10–7 times the volume of the Sun. Express this figure in usual form.
A half-life is the amount of time that it takes for a radioactive substance to decay to one half of its original quantity.
Suppose radioactive decay causes 300 grams of a substance to decrease to 300 × 2–3 grams after 3 half-lives. Evaluate 300 × 2–3 to determine how many grams of the substance are left.
Explain why the expression 300 × 2–n can be used to find the amount of the substance that remains after n half-lives.
