Calculate the volume of 1280 kilograms of aluminium if the density of aluminium is 2700 kg/m³. Give your answer to 2 decimal places.
Answers
Answer:
The correct answer is 0.47 m³
Explanation:
The formula for density (d) is
Mass (m) ÷ volume (v)
Hence
d = m ÷ v
The density of aluminium (as provided in the question) is 2700 kg/m³ and the mass of aluminium is 1280 kg, the volume is however unknown.
Thus, from the formula earlier
2700 = 1280 ÷ v
v = 1280 ÷ 2700
v = 0.47 m³
The volume of aluminium when the density is 2700 kg/m³ and the mass is 1280 kg is 0.47 m³
Answer:
volume = 0.47 .
Explanation:
Density:
We have that d = 2700 kg/ and that we have 1280 kg of Al.
V = 0.47
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When the separation between two masses is doubled, the gravitational force between them decreases by 4.
What is meant by gravitational force ?
Gravitational force is defined as the force of attraction experienced by a body due to the gravity of earth.
Here,
The separation between two masses is doubled.
That means the distance, r₂ = 2r₁
We know that the equation of gravitational force is given by,
F = GMm/r²
where G is the gravitational constant
From the equation, we know that the gravitational force obeys the inverse square law.
That means the gravitational force is inversely proportional to the square of the distance between the masses.
So, F 1/r²
Therefore,
F₂/F₁ = (r₁/r₂)²
F₂ = F₁(1/2)²
F₂ = F₁/4
Hence,
When the separation between two masses is doubled, the gravitational force between them decreases by 4.
To learn more about gravitational force, click:
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Answer:
increase by a factor of 4.
Explanation:
If the separation distance between two objects is doubled (increased by a factor of 2), then the force of gravitational attraction is decreased by a factor of 4 (2 raised to the second power).
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Main article: History of special relativityEinstein's "Zur Elektrodynamik bewegter Körper" ("On the Electrodynamics of Moving Bodies") was received on 30 June 1905 and published 26 September of that same year. It reconciles Maxwell's equations for electricity and magnetism with the laws of mechanics, by introducing major changes to mechanics close to the speed of light. This later became known as Einstein's special theory of relativity.
B.Motor
C.Track
D.Cars
this is science
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A. Chain. i hope this helps