Law of universal gravitation:
F = GMm/r²
F = gravitational force, G = gravitational constant, M & m = masses of the objects, r = distance between the objects
F is proportional to both M and m:
F ∝ M, F ∝ m
F is proportional to the inverse square of r:
F ∝ 1/r²
Calculate the scaling factor of F due to the change in M:
k₁ = 2M/M = 2
Calculate the scaling factor of F due to the change in m:
k₂ = 2m/m = 2
Calculate the scaling factor of F due to the change in r:
k₃ = 1/(4r/r)² = 1/16
Multiply the original force F by the scaling factors to obtain the new force:
Fk₁k₂k₃
= F(2)(2)(1/16)
= F/4
Answer:
The correct answer is certainly true.
Explanation:
You first need to fully understand the conflict/problem before explaining it.
Most students do this when doing a research project.
For example: Let's say I had a project to explain solutions for climate change but I didn't even know what it is and how it was caused. Well of course your teacher will make you research the topic in order to represent it correctly.
Air flows from high pressure to low pressure. So does water.
So do populations of people and animals, but that's another
story.
When you reduce the pressure in your lungs, air flows into them
from outside, and you inhale. When you increase the pressure
in your lungs, air flows out of them to the outside, and you exhale.
I haven't seen a whale in about 30 years, and they may have changed
since then. But the last time I saw some, air and spray were blowing
OUT of their blow-holes. As soon as I saw that, I said to myself:
"Self ! The pressure inside that creature's body must be greater than
the outside atmospheric pressure, and that's why the air is flowing out,
from the higher pressure to the lower pressure."
Answer:
The values of gravitational force and gravitational constant become same or equal when product of masses involved equals the square of distance between them.
Answer:
Wave Speed (m/s)
31.25
Summary
Wavelength (m)6.25
Frequency (hz)5
Explanation:
https://calculator.academy/wave-speed-calculator/#f1p1