B would be the correct answer
The effective temperature of a star is relative to the
fourth root of the luminosity and is contrariwise proportional to the square
root of the radius.
L = k R² T⁴
If the radius remains continuous, while the luminosity doubles, the temperature
must increase by a factor of the fourth root of two.
If L → 2L, then T → 1.189207115 T
So the answer is approximately 1.19 times.
Answer: 0.432kgm/s
Explanation:
Momentum of a body is defined as the product of the mass (m) of the body and its velocity (v).
Momentum = Mass × Velocity
Given mass = 0.16kg and velocity = 2.7m/s
Substituting the datas into the formula,
Momentum = 0.16×2.7
Momentum = 0.432kgm/s
The product of (wavelength) times (frequency) is always
the same number ... it's the speed of the wave.
So if the speed of the wave doesn't change, the product
of (wavelength) times (frequency) doesn't change.
That means that if the wavelength OR the frequency changes,
the OTHER one has to change by the same factor in the opposite
direction, in order to keep their product unchanged.
If the frequency in INcreased by a factor of 4,
the wavelength must DEcrease by a factor of 4.
If the frequency becomes 4 times as great as it was,
then the wavelength becomes 1/4 as long as it was.
(Please don't say "4 times shorter". That's meaningless and I hate it.)
The net force is zero due to the direction.
We need to know about force resultant to solve this problem. The force resultant is the total net force applied to the object according to the direction. It can be written as
R = F1 + F2 + ... + Fn
where R is force resultant (net force)
From the question above, we know that
F1 = F2 = F N
Because the direction is the same, the force will be minus each other.
R = F1 - F2
R = F - F
R = 0 N
Hence, the net force is 0 N
Find more on net force at: brainly.com/question/14361879
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