2 years ago

The lantern rises up because the ______ of the _inside the lantern is _____ compared to the air around it

Physics

2 answers:

Vika [28.1K]2 years ago

7 0

Density, fire, less dense

ch4aika [34]2 years ago

5 0

Answer:

gass fire and the same density

Explanation:

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The student toses a ball into the air and then watches the ball fall back down to earth. When does the ball have the most potent

pishuonlain [190]

Answer:

when the ball is at its highest in the air.

Explanation:

I don't know for sure, but when the ball is in the air it has potential energy to fall(or something like that).

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2 years ago

Why can't you feel rhe force of attraction between you and mars

NISA [10]

Because Mars is too far away for its gravitational pull to affect us, in addition Earths gravitational pull is greater than Mars anyways.

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3 years ago

A sample of helium behaves as an ideal gas as energy is

alisha [4.7K]

Answer:

0.0321 g

Explanation:

Let helium specific heat $c_h = 5.193 J/g K$

Assuming no energy is lost in the process, by the law of energy conservation we can state that the 20J work done is from the heat transfer to heat it up from 273K to 393K, which is a difference of ΔT = 393 - 273 = 120 K. We have the following heat transfer equation:

$E_h = m_hc_h \Delta T = 20 J$