3 years ago

When does a nebula become a star?

Physics

1 answer:

pashok25 [27]3 years ago

7 0

When the contracting gas and dust from nebula become so dense and hot that nuclear fusion starts

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Savatey [412]

I think option C is correct..hope it helps

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GenaCL600 [577]

The object's speed will remain constant after the it leaves his hand.

So will HIS speed in the opposite direction.

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3 years ago

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Starting from one oasis, a camel walks 25 km in a direction 30° south of west and then walks 30 km toward the north to a second

shepuryov [24]

Answer:

distance between both oasis ( 1 and 2) is 27.83 Km

Explanation:

let d is the distance between oasis1 and oasis 2

from figure

OC = 25cos 30

OE = 25sin30

OE = CD

Therefore BC = 30-25sin30

distance between both oasis ( 1 and 2) is calculated by using phytogoras theorem

in $\Delta BCO$

$OB^2 = BC^2 + OC^2$

PUTTING ALL VALUE IN ABOVE EQUATION

$d^2 = 930-25sin30)^2 + (25cos30)^2$

$d^2 = 775$

d = 27.83 Km

distance between both oasis ( 1 and 2) is 27.83 Km

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3 years ago

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bagirrra123 [75]

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(50 Points) Need to know ASAP!! What human needs or desires were met through the development of alpaca populations??

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