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Ksju [112]
2 years ago
12

A package of aluminum foil contains 50. ft2 of foil, which weighs approximately 6.0 oz. Aluminum has a density of 2.70 g/cm3. Wh

at is the approximate thickness of the foil in millimeters? Express your answer to two significant figures and include the appropriate units.
Physics
1 answer:
SIZIF [17.4K]2 years ago
3 0

Answer:

1.36 x 10^-3 cm

Explanation:

Area = 50 ft^2 = 46451.5 cm^2

mass = 6 oz = 170.097 g

density = 2.70 g/cm^3

Let t be the thickness of foil in cm.

mass = volume x density

mass = area x thickness x density

170.097 = 46451.5 x t x 2.70

t = 1.36 x 10^-3 cm

Thus, the thickness of aluminium foil is 1.36 x 10^-3 cm.

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Answer:

current in water = 0.924 A

Explanation:

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We are given;

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Applying Kirchoff's Voltage Law to row and water, we have;

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Rearranging;

5000E = (5000r)i + 800(140i)

Plugging in the relevant values;

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Answer:

B. X-rays

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<h3>n(F) = 4</h3>

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