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3 years ago

If the mass of a material is 50 grams and the volume of the material is 5 cm^3, what would the density of the material be?

Physics

2 answers:

natta225 [31]3 years ago

7 0

Density is always (mass)/(volume).

For the piece of material you've got there, the density is

(50 grams)/(5 cm^3).

kotykmax [81]3 years ago

5 0

D = M / V

D = 50 / 5

D = 10 g/cm^3

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Answer:

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Explanation:

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T₀ be the initial temperature of the thermometer = 212°F

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dT/dt = (-h/mc) (T - T∞)

Let (h/mc) be k

dT/(T - T∞) = -kdt

Integrating the left hand side from T₀ to T and the right hand side from 0 to t

In [(T - T∞)/(T₀ - T∞)] = -kt

(T - T∞)/(T₀ - T∞) = e⁻ᵏᵗ

(T - T∞) = (T₀ - T∞)e⁻ᵏᵗ

Inserting the known variables

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At t = 2 minute, T = 125°F

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