3 years ago

How many seconds are there in one light-year?

1 answer:

8 0

31,536,000 seconds because 365 days a year, 24 hours a day. Every hour is 60 minutes, and each minutes 60 seconds. So to get the answer 60 sec/min x 60 min/hr x 24 hr/day x 365 days/year = 31,536,000 seconds.

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The accepted value for the mass of a moonrock is 46.37 g. In an experiment the rock is measured to be 47.25 g. What is the perce

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Answer:

The answer is

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The percentage error of a certain measurement can be found by using the formula

$P(\%) = \frac{error}{actual \: \: number} \times 100\% \\$

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The percentage error of the measurement is

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2 years ago

A. What was the pH change when HCI was added to tap water?

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