2 years ago

SORRY! COULDN'T EDIT MORE INFO ON MY LAST QUESTION! RE ASKING

1 answer:

8 0

The position isn't changing ! The object is not moving. It's just sitting there. No matter what 't' you're interested in, the position is exactly the same as it has been since t=0 .

That's (4 divisions) x (2.8 m/div). I'm sure you can calculate the number of meters.

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Snezhnost [94]

Answer:

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Explanation:

We can use the formula for the Range in flat ground, given by:

$Range=v_i^2\frac{sin(2\theta)}{g}$

which for our case renders:

$Range=15^2\frac{sin(80^o)}{9.8} \approx 22.61\,\,m$

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likoan [24]

Answer:

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Alexandra [31]

Answer:

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3 years ago

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A package of aluminum foil contains 50. Ft2 of foil, which weighs approximately 7.0 oz . Aluminum has a density of 2.70 g/cm3. W

kumpel [21]

We know density = Mass / Volume

So Volume = Mass/Density

Volume = Area * Thickness

$Area = 50 ft^2 = 4.645152 m^2\\ \\Mass = 7 oz = 0.198447 kg\\ \\Density = 2.70 g/cm^3 = 2700 kg/m^3\\ \\Substituting \\ \\4.645152 *t = \frac{0.198447}{2700} \\ \\t = 1.58*10^{-5}m = 1.58*10^{-2}mm$

So the approximate thickness of the foil in millimeters = $1.58*10^{-2}mm$

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Amanda [17]

Answer:

13.77 Billion years old

Explanation:

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