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VladimirAG [237]
4 years ago
9

Select all that apply.

Physics
2 answers:
ICE Princess25 [194]4 years ago
7 0

Explanation:

A graduated cylinder is an apparatus that is used to measure the volume of a liquid.

So, whenever we perform any experiment with liquids then we need to have a graduated cylinder. This is because a graduated cylinder helps in proper or accurate measurement of a liquid.  

While reading the volume of a liquid, we always see the lower meniscus to read the accurate value of its volume.

In a laboratory, it is not only the graduated cylinder with which we can measure the volume because in certain reactions pipette is also used to measure the volume.

Therefore, we can conclude that the TWO true statements from the following are:

  • Graduated cylinders are used to measure volume.
  • Always read a graduated cylinder from the bottom of the meniscus.
Licemer1 [7]4 years ago
5 0
The following statements are correct:
1. Graduated cylinder are used to measure volume.
2. Always read a graduated cylinder from the bottom of the meniscus. 
Graduated cylinders are one of the instruments used to measure liquid substances in the laboratory. The most accurate way of reading measuring cylinder is to record the value at the bottom of the meniscus.
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Answer:

14.392 m

Explanation:

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Here the energy is balanced

\frac{1}{2} I \omega_{0}^{2}+\frac{1}{2} M v_{0}^{2}-W_{f}=M g h

\Rightarrow (0.8)\left(\frac{1}{2}\right) M R^{2} \omega_{0}^{2}+\frac{1}{2} M \omega_{0}^{2} R^{2}-W_{f}=M g h

\Rightarrow h=\dfrac{\frac{1}{2} I \omega_{0}^{2}+\frac{1}{2} M v_{0}^{2}-W_{f}}{Mg}\\\Rightarrow h=\frac{(0.8)\left(\frac{1}{2}\right)\left(\frac{392}{9.81}\right)(0.6)^{2}(25)^{2}+\left(\frac{1}{2}\right)\left(\frac{392}{9.81}\right)(25)^{2}(0.6)^{2}-2450}{392}\\\Rightarrow h=14.392\ m

The h value is 14.392 m

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Use differentials to estimate the amount of metal in a closed cylindrical can that is 10 cm high and 10 cm in diameter if the me
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Answer:

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Explanation:

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V = f ( h,r)

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