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3 years ago

How many significant figures are in each measurement? 0.00052 m

Chemistry

2 answers:

NikAS [45]3 years ago

8 0

All the measurement contain two significant figures

leonid [27]3 years ago

6 0

a. 0.00052 m

Answer: two significant figures.

Explanation:

The zeros to the left of 52 do not count as signficant figures.

Only, 5 and 2 are significant figures.

b. 9.8 x 10⁴ g

Answer: two significant figures.

Explanation:

Both 9 and 8 count as significant figures. Here there are not additional zeros that might confuse you.

c. 5.050 mg

Answer: four significant figures.

Explanation:

The zeros to the right count as signficiant figjres. So here, 5, 0, 5, and 0 are the significant figures.

d. 8700 ml

Answer: two signficant figures.

Explanation:

Since the two zeros to the right are used to determine the place value of 87, you cannot count them as significant figures. Here, only 8 and 7 are significant figures.

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Read 2 more answers

Which one of Newton's Laws fits this statement: More mass means more force needed to accelerate?

ivolga24 [154]

Answer:

Newton's Second Law

Explanation:

Newton's second law basically states that the acceleration of a body which is produced by a net force is directly proportional to the magnitude of net force applied in the same direction.

This tells us that

F is directly proportional to a

⇒ F= ma

So we can also state from the above equation, that when we have more mass, we need more net force to accelerate it. Here, we are keeping the acceleration constant so we can surely say that force and mass varies directly.

Therefore, we have made good use of Newton's Second Law of motion to arrive at this conclusion.

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4 years ago