3 years ago

Galileo started modern science because he started using ? Rather than speculation

Physics

1 answer:

Eva8 [605]3 years ago

4 0

By using the telescope

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deff fn [24]

Answer:

V=3.5 m/s

Explanation:

V=(F)(W)

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3 years ago

The term pressure most nearly refers to which of the following?

Arte-miy333 [17]

The term pressure refers to the force per area created by the weight
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charle [14.2K]

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4 years ago

What force, in newtons, must you exert on the balloon with your hands to create a gauge pressure of 62.5 cm H2O, if you squeeze

yulyashka [42]

Answer:54.70 N

Explanation:

Given

Gauge Pressure of $62.5 cm of H_2O$

i.e. $h=62.5 cm =0.625 m$

Effective area $A=51 cm^2$

initial Pressure $= 1 atm=101.325 kPa$

Gauge Pressure $P=\rho gh$

$\rho =density\ of\ water =1000 kg/m^3$

$P_{gauge}=1000\times 9.8\times 0.625=5.937 kPa$

Force creates a pressure of $P_1$ which will be equal to Gauge Pressure

$P_1=\frac{F}{A}$

$P_1=P_{gauge}$

$\frac{F}{A}=5.937 kPa$

$F=5.937\times 51\times 10^{-4}\times 10^3$

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Q:Why does a sheet of sandpaper become warm when you rub it against a wooden board?

otez555 [7]

Answer: D and friction

Explanation:

PLz brainliest

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