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matrenka [14]
3 years ago
11

And object has a mass of 15g it has a volume of 7.5ml. find the density of the object.

Physics
1 answer:
Nostrana [21]3 years ago
8 0

Answer:

D = 2 g/mL

Explanation:

Density = Mass / Volume

D = 15g/ 7.5 mL

D = 2 g/mL

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An object of mass m travels along the parabola yequalsx squared with a constant speed of 5 ​units/sec. What is the force on the
Dmitriy789 [7]

Explanation:

The object is moving along the parabola y = x² and is at the point (√2, 2).  Because the object is changing directions, it has a centripetal acceleration towards the center of the circle of curvature.

First, we need to find the radius of curvature.  This is given by the equation:

R = [1 + (y')²]^(³/₂) / |y"|

y' = 2x and y" = 2:

R = [1 + (2x)²]^(³/₂) / |2|

R = (1 + 4x²)^(³/₂) / 2

At x = √2:

R = (1 + 4(√2)²)^(³/₂) / 2

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R = 13.5

So the centripetal force is:

F = m v² / r

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F = 1.85 m

7 0
3 years ago
I'm new to brainy, but here is my question.
skad [1K]

680 is the right answer

8 0
3 years ago
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From the average distance of one of jupiter's moons to jupiter and its orbital period around jupiter, we can determine:
den301095 [7]

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Explanation:

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water vapor contained in a piston–cylinder assembly undergoes an isothermal expansion at 240°c from a pressure of 7 bar to a pre
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According to the Ideal Gas Law, a gas's pressure, volume, and temperature may all be compared based on its density or mole value.

The Ideal Gas Law has two fundamental formulas.

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V = Liters of Volume

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T = Kelvin-degree temperature

M stands for Molar Mass of the Gas in grams Mol d for Gas Density in gL.

Learn more about Ideal gas law here-

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7 0
1 year ago
Explain how the meanings of the terms biotic factor and abiotic factor differ ?
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Hi There!

Biotic factors are all the living things in an ecosystem, and abiotic factors are all of the non-living things in an ecosystem. So, they differ because they both mean opposite things.

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