When the separation between two masses is doubled, the gravitational force between them decreases by 4.
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.
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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).
Answer:
4.8 m
Explanation:
A transverse wave is a wave in which the oscillation of the particles occur in a direction perpendicular to the direction of motion of the wave.
The amplitude of a transverse wave is the maximum displacement of the wave with respect to the equilibrium position.
The crest of a wave is the position of maximum displacement on the positive side, while the trough of a wave is the position of maximum displacement on the negative side.
This means that the amplitude of a wave is equal to the distance between a crest (or a trough) and the equilibrium position.
Therefore, we have:
where:
d is the distance between the top of a crest and the bottom of a trough
A is the amplitude of the wave
Here we have:
A = 2.4 m
So, we find
true or false?
Answer:false
Explanation:
Atoms don’t always fission the same way. You saw three different possible fission reactions for U-235
Answer: F
Explanation:
Answer:
Electrons are negatively charged, and so are attracted to the positive end of a battery and repelled by the negative end. So when the battery is hooked up to something that lets the electrons flow through it, they flow from negative to positive.
Explanation:
Answer: 71.72 days
Explanation:
This problem can be solved using the Radioactive Half Life Formula:
(1)
Where:
is the final amount of Iodine-131
is the initial amount of Iodine-131
is the time elapsed
is the half life of Iodine-131
Knowing this, let's substitute the values and find from (1):
(2)
(3)
Applying natural logarithm in both sides:
(4)
(5)
Finding :