All categories

2 years ago

When warm air rises, cold air will _____.

Physics

1 answer:

Arte-miy333 [17]2 years ago

6 0

Explanation:

sink and fill in space..........

You might be interested in

I will be so thankful if u answer correctly!!

polet [3.4K]

Explanation:

The acceleration due to gravity on earth $g_{E}$ is given by

$g_{E} = G\dfrac{M_{E}}{R_{E}^{2}}$

where $G$ = universal gravitational constant

$\:\:\:\:\:\:\:\:\:\:\:\:M_{R}$ = mass of the earth

$\:\:\:\:\:\:\:\:\:\:\:\:R_{E}$ = radius of the earth

Planet Krypton has twice the mass of earth and 3 times the radius so its acceleration due to gravity $g_{K}$ is

$g_{K} = G\dfrac{M_{K}}{R_{K}^{2}}$

$\:\:\:\:\:\: = G\dfrac{(2M_{E})}{(3R_{E})^{2}}$

$\:\:\:\:\;\:= (\dfrac{2}{9})G\dfrac{M_{E}}{R_{E}^{2}}$

$g_{K} = (\dfrac{2}{9})\:g_{E}$

If we multiply both sides by Superman's mass, we get his weights on both planets:

$mg_{K} = (\dfrac{2}{9})\:(mg_{E})$

$W_{K} = (\dfrac{2}{9})\:W_{E} = (\dfrac{2}{9})(900\:N)= 200\:N$

3 0

2 years ago

Why does a diverging lens never produce a real image?

Alecsey [184]

A diverging lens never produces a real image because the actual light rays never converge. They always diverge. ... A diverging virtual image is always SMALLER than the object. A converging virtual image is always LARGER than the object

5 0

3 years ago

HELPPP PLEASEEEE, BRAINLEST WILL BE GIVEN

Alex17521 [72]

Answer:

nice question but I don't know please forgive me

5 0

2 years ago

Read 2 more answers

Temperatures expressed in the Kelvin scale are ____ higher than temperatures in the Celsius scale?

Cerrena [4.2K]

Answer: D. 273

Explanation: Celsius temperatures can be negative while kelvin goes down to absolute zero and doesn’t go any lower, thus no negative numbers

4 0

2 years ago

Lowest frequency?______

Roman55 [17]

Radio waves have the lowest frequency, but 0 hz is the lowest

4 0

2 years ago