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lawyer [7]
3 years ago
14

Measuring the size of a specific object might include which pair of SI units? A. gram, second B. candela, mole C. kilogram, ampe

re D. meter, kilometer
Physics
1 answer:
Alecsey [184]3 years ago
7 0
Answer: D. meter, kilometer
SI or "International System of Unit" is the unit that used in the international organization to make counting easier.

In this case, all of the options are base SI but if you compare them both they are a different unit that can't be converted each other. You can't convert gram into second.
Only option D. meter, kilometer is had the same unit that can be converted.
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I don't completely understand your drawing, although I can see that you certainly
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Each separate weight has a 'moment'.
The moment of each weight is: 

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Jack is planning an experiment to see how temperature can affect the reproduction rate of a certain species of bacteria. Jack is
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6 0
3 years ago
Read 2 more answers
A spring of force constant 1500 Nm-l is acted
olchik [2.2K]

Answer:

1.876 J

Explanation:

First, let’s calculate the compression of the spring from the Hooke’s law:

F=kx,

here, F=75 N is the force acted on the spring, k=1500 N⁄m is the force constant of the spring, x is the compression of the spring.

Then, we get:

x=F/k=(75 N)/(1500 N/m)=0.05 m.

Finally, we can find the potential energy stored in the spring:

PE=1/2 kx^2=1/2∙1500 N/m∙(0.05 m)^2=1.875 J.

correct my answer if it's wrong ^^

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3 years ago
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