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valentinak56 [21]
3 years ago
13

If the mass of a material is 111 grams and the volume of the material is 23 cm3, what would the density of the material be? g/cm

3
Physics
1 answer:
Butoxors [25]3 years ago
4 0
Density can be kg/m^3 or g/cm3
In g/cm3 density =mass /volume =111g/23cm3
=4.826g/cm3.

In kg/m3,density=mass/volume. converting mass in grams to kg, 1000g=1kg,111g=0.111kg.
cm3 to m3, 1cm3=10^-6m3, 23cm3=0.000023m3
density=0.111kg/0.000023m3 or 2.3*10^-5=4,826.1kg/m3.

the other is a long process.
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Answer:  A) 6.38(10)^{6} m

Explanation:

The equation for the moment of inertia I of a sphere is:

I=\frac{2}{5}mr^{2} (1)

Where:

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m=5.98(10)^{24}kg is the mass of the planet

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Isolating r from (1):

r=\sqrt{\frac{5I}{2m}} (2)

Solving:

r=\sqrt{\frac{5(9.74(10)^{37}kg m^{2})}{2(5.98(10)^{24}kg)}} (3)

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An object is located 70 cm from a concave mirror with a focal length of 15 cm. What is the image
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ioda

Answer:

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