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denpristay [2]
3 years ago
12

How does a screw make the work of fastening two objects together easier? A. The screw changes the direction of a force - it conv

erts linear force into rotational force. It also reduces the force required - the closer the threads, the larger the input force required to get the same output force. B. The screw changes the direction of a force - it converts rotational force into linear force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force. C. The screw changes the direction of a force - it converts rotational force into linear force. It also reduces the force required - the closer the threads, the larger the input force required to get the same output force. D. The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.
Chemistry
2 answers:
Pachacha [2.7K]3 years ago
3 0
<span>D. The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.</span>
Lapatulllka [165]3 years ago
3 0
The answer is <span>D. The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.</span>
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Which one of the following is not a homogeneous mixture?
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3 years ago
At which position is the northern hemisphere experiencing winter?
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Answer:

Point A

Explanation:

The Northern Hemisphere is furthest away from the sun in position A. Therefore the sunlight takes longer to reach the Earth which results in the Northern Hemisphere experiencing winter.

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How can you measure the volume of an irregular shaped solid?
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7 0
3 years ago
Calculate the hight of a column of liquid glycerol in meters required to exert the same pressure as 3.02 m if CCl4?
katovenus [111]

Answer:

Approximately 3.81\; \rm m.

Explanation:

Look up the density \rho of carbon tetrachloride, \rm CCl_4, and glycerol:

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  • Density of glycerol: approximately 1.26\times 10^{3}\; \rm kg \cdot m^{-3}.

Let g denote the gravitational field strength. (Typically g \approx 9.81\; \rm N \cdot kg^{-1} near the surface of the earth.) For a column of liquid with a height of h, if the density of the liquid is \rho, the pressure at the bottom of the column would be:

P = \rho\cdot g \cdot h.

The pressure at the bottom of this carbon tetrachloride column would be:

\begin{aligned} P &= \rho \cdot g \cdot h \\ & \approx 1.59\times 10^{3} \; \rm kg \cdot m^{-3} \times 9.81\; \rm N \cdot kg^{-1} \times 3.02 \; \rm m \approx 4.71 \times 10^{4} \; \rm N \cdot m^{-2} \end{aligned}.

Rearrange the equation P = \rho\cdot g \cdot h for h:

\displaystyle h = \frac{P}{\rho \cdot g}.

Apply this equation to calculate the height of the liquid glycerol column:

\begin{aligned}h &= \frac{P}{\rho \cdot g} \\ &\approx \frac{4.71 \times 10^{4}\; \rm N \cdot m^{-2}}{1.26 \times 10^{3}\; \rm kg \cdot m^{-3} \times 9.81\; \rm N \cdot kg^{-1}} \approx 3.81\; \rm m\end{aligned}.

4 0
3 years ago
H2 + Cl2 --&gt; 2HCl
scZoUnD [109]

Answer:

c20 will be there ok

Explanation:

okbbbbbbbbbbyyyyyyyy

4 0
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