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user100 [1]
3 years ago
14

Why does pollution hurt the earth?

Physics
2 answers:
julia-pushkina [17]3 years ago
5 0
Cause pollution make global warming will effect the earth
Triss [41]3 years ago
4 0
Because pollution (gases, garbage.) harms the envoriment aka animals they eat the garbage but the gases are harmful to the tree and plants and etc. because they breathe the gases and then start to give less and less leaves of fruits or etc.
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What type of fossils were found near Macon Georgia?
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Answer:

I believe whale fossils were found.

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3 years ago
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-Para lograr que una pieza de 0,300 kg de cierto metal aumente su temperatura desde 40°C a 60 °C ha sido necesario suministrarle
marishachu [46]

Answer:

parte a) el calor específico es c = 0.383 J /(gr*K)

parte b) la temperatura inicial es T inicial= 52.72 °C

Explanation:

para el primer punto la formula para el calor Q es:

Q = m * c * ( T final - T inicial )

donde

m= masa de la pieza = 0.300 kg = 300 gr

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entonces

Q = m * c * ( T final - T inicial )

c = Q / [ m* ( T final - T inicial ) = 2299 J/[ 300 gr  * ( 60 °C - 40°C )]

= 0.383 J /(gr*K)

c = 0.383 J /(gr*K)

para el segundo punto usamos la misma formula

Q = m * c * ( T final - T inicial )

pero

m= 200 gr= 0.200 kg

c=459.8 J/(kg*K) , Q =20.900 J , T final = 280 °C

Q = m * c * ( T final - T inicial )

T inicial = T final - Q/(m*c)  =280 °C - 20.900 J/(459.8 J/(kg*K)* 0.200 kg) = 52.72 °C

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4 years ago
The landing gear of an airplane can be idealized as the spring-mass-damper system shown in fig. 3.52. if the runway surface is d
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I believe the answer would be B) ...... sorry if i'm wrong
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