A student is measuring the mass of 20 paper clips using an electronic balance that measures to the thousandths of a gram. The balance displays the value for the mass of the paper clips: 20.120 g. Which of the values would be acceptable ways to record this mass in a lab notebook

The question is incomplete, the complete question is;

A student is measuring the mass of 20 paper clips using an electric balance that measures to the thousandths of a gram. The balance displays the following values for the mass of the paper clip: 20.120 g.

Which of the following choices would be acceptable ways to record this mass on a lab report? Select all that apply.

a) 20g

b) 20.1 g

c) 20.12 g

d) 20.120g

e) 20.1200g

d) 20.120g

Explanation:

We have been told in the question that the electronic balance measures the mass of the paper clips to thousandths of a gram.

This implies that the value of mass is measured to the third decimal place.

If we look at the options, 20.120 g is the measurement of the mass to thousandths of a gram hence that is the correct answer to the question.

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what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s