3 years ago

I need help plzzzz!!!!!!!!!!!!!!!!

Physics

1 answer:

elena-s [515]3 years ago

4 0

Answer:

You were a freeloader of my questions, so I'll be one too.

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It would be Electrical converted to electromagnetic waves.

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2 years ago

suppose 384g of steam originally at 100C is quickly cooled to produce liquid water at 31C. How much heat must be removed from th

dlinn [17]

Answer:

$Q=977216.256\ J=977.216\ kJ$

Explanation:

Given:

mass of steam, $m=384\ g$

temperature of steam, $T_{is}=100^{\circ}C$

temperature of resultant water, $T_{fw}=31^{\circ}C$

We have,

latent heat of vapourization of water, $L=2256\ J.g^{-1}$

specific heat capacity of water, $c=4.186\ J.g^{-1}$

<em>When we cool the steam of 100°C then firstly it loses its latent heat to convert into water of 100°C and the further cools the water.</em>

<u>Now the heat removed from steam to achieve the final state of water:</u>

$\rm Q=latent\ heat\ of\ vapourization+sensible\ heat\ of\ water$

$Q=m(L+c.\Delta T)$

$Q=384(2256+4.186\times (100-31))$

$Q=977216.256\ J=977.216\ kJ$

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3 years ago

Research on the Big Five has indicated that approximately _____ percent of traits appear to be inherited.

Evgen [1.6K]

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A particle travels in a circle of radius 76 cm and completes one revolution in 4.5 s. What is the centripetal acceleration of th

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r = radius of the circle traveled by the particle = 76 cm = 0.76 m

T = time period of revolution for the particle = 4.5 s

w = angular velocity of the particle

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inserting the values

w = 2 (3.14)/4.5

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inserting the values

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a = 1.5 m/s²

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a=F/m=(100kg)=1.0m/s 2

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