3 years ago

Which of the following measurements has two significant digits?

Physics

2 answers:

myrzilka [38]3 years ago

7 0

0.022 has 2 digits because you would count from the left starting with the first nonzero number

Shkiper50 [21]3 years ago

3 0

0.022km explanation: 0.3g only has 1 sig digit and so does thy other ones except for 0.022

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Answer:

Frequency is $213.04\ s^{-1}.$

Explanation:

Distance between source 1 from the receiver , $S_1 =\sqrt{10^2+22^2}=24.17\ m.$

Distance between source 2 from the receiver , $S_2=\sqrt{5^2+22^2}=22.56\ m.$

Now ,

Path difference , $r = S_1-S_2=24.17-22.56=1.61\ m.$

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marusya05 [52]

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2 years ago

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3 years ago

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