Answer:Magnetic fields are invisible, at least usually. But scientists from NASA's Space Sciences Laboratory have made them visible as "animated photographs," using sound-controlled CGI and 3D compositing.
Explanation:
Answer:
a car
A sled sliding across snow or ice.
a ball down a hill
mercury
Explanation:
2H2O->2H2+O2
This balanced chemical equation represents the decomposition of water into hydrogen gas and oxygen gas
Answer:
The pressure at any point in a column of gas is an exponential function
Explanation:
In the case of water due to the hydrostatic paradox, a liquid of any quantity can support any weight it is subjected to, as such the pressure at a point in a liquid is directly proportional to the depth. Analogous to stack of bricks
P = ρ×g×h
For gases we have that gas density depends on the gas pressure and pressure depends on gas density
This is as a result of the comprehensibility of gases in the atmosphere which is analogous to compressible bricks. A gas quickly spreads out to occupy a containing volume as such when subject to a force they are compressed to occupy a lesser volume.
However as the elevation increases it results in a lesser column of fluid exerting a force at that point hence reducing the pressure at that point.
We have for gases
where
= Pressure at height h
P₀ = Pressure at reference point
m = unit mass of air molecule
g = Acceleration due to gravity
h = Height from the reference point
k = Boltzmann constant
T = Temperature in Kelvin
The pressure at any point in a column of gas is an exponential function
Answer:
A
Explanation:
Moving the objects together would increase the gravitational force between the object since the closer objects are to each other, since the gravitational force inreases the closer the objects are.