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Veseljchak [2.6K]
3 years ago
13

The fact that, in general, liquids and gases expand when heated

Physics
1 answer:
nordsb [41]3 years ago
7 0

The fact that, in general, liquids and gases expand when heated gives rise to

b) convection currents in fluids due to changing densities.

\bold{ \green{ \star{ \orange{Mystique35}}}}⋆

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Help!! Sorry for the picture being sideways
Lorico [155]

Answer:

what?

Explanation:

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3 years ago
Explain why atmospheric pressure changes as atmospheric depth changes
Pavel [41]

The force of the collisions creates pressure on the container. ... Explain why atmospheric pressure changes as depth changes. Atmospheric pressure increases as depth increases because at lower levels of the atmosphere, there is more air above that is being pulled down by gravitational force.

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3 years ago
Explain how an object can have force acting on it but not be acceleration?
VladimirAG [237]

That's what happens if there is more than one force acting on the
object, and the forces are balanced, that is, they all "cancel out".

Think of the rope in a Tug-'o-War.  It has 50 musclebound football guys
all pulling the rope to the west, and 150 strong cheerleaders all pulling
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no force on it at all.


7 0
3 years ago
hi everyone im learning about zodiac signs can u plz share urs and somethings u like to for ex im an aquarius and i sing and lik
maksim [4K]

Answer: Aquarius!!!!

Explanation:

6 0
3 years ago
Read 2 more answers
"The International Space Station (ISS) orbits at a distance of 350 km above the surface of the Earth. (a) Determine the gravitat
vagabundo [1.1K]

Answer:

(a) g = 8.82158145m/s^2.

(b) 7699.990192m/s.

(c)5484.3301s = 1.5234 hours.(extremely fast).

Explanation:

(a) Strength of gravitational field 'g' by definition is

g = \frac{M_{(earth)} }{r^2} G , here G is Gravitational Constant, and r is distance from center of earth, all the values will remain same except r which will be radius of earth + altitude at which ISS is in orbit.

r = 6721,000 meters, putting this value in above equation gives g = 8.82158145m/s^2.

(b) We have to essentially calculate centripetal acceleration that equals new 'g'.

a_{centripetal}=\frac{V^2}{r} =g here g is known, r is known and v is unknown.

plugging in r and g in above and solving for unknown gives V = 7699.990192m/s.

(c)  S = vT,  here T is time period or time required to complete one full revolution.

S =  earth's circumfrence , V is calculated in (B) T is unknown.

solving for unknown gives T = 5484.3301s = 1.5234hours.

3 0
3 years ago
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