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3 years ago

You go outside on a bright, warm day, How can you tell that you are absorbing radiant energy from the sun?

Physics

1 answer:

iVinArrow [24]3 years ago

7 0

Answer:

you start sweating and it would get hot

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Theories have both an explanatory and a predictive function. a. True b. False

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Theories have both an explanatory an a predictive function. True

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3 years ago

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Amanda has started running as her primary form of exercise, but she's getting bored with it and finds excuses to procrastinate.

blsea [12.9K]

AnswerB

Explanation:

Just get good

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2 years ago

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A piston-cylinder device initially contains 1.4 kg saturated liquid water at 200oC. Now heat is transferred to the water until t

postnew [5]

Answer:

Explanation:

Given

mass of saturated liquid water $m=1.4\ kg$

at $200^{\circ}$ specific volume is $\nu =0.001157\ m^3\kg$ (From Table A-4,Saturated water Temperature table)

$V_1=m\nu _1$

$V_1=1.4\times 0.001157$

$V_1=1.6198\times 10^{-3}\ m^3$

Final Volume $V_2=4V_1$

$V_2=4\times (1.6198\times 10^{-3})$

$V_2=6.4792\times 10^{-3}\ m^3$

Specific volume at this stage

$\nu _2=\frac{V_2}{m}$

$\nu _2=\frac{6.4792\times 10^{-3}}{1.4}$

$\nu _2=0.004628\ m^3/kg$

Now we see the value and find the temperature it corresponds to specific volume at vapor stage in the table.

$T_2=T_1^{*}+\frac{T_2^{*}-T_1^{*}}{\alpha _2^{*}-\alpha _1^{*}}\times (\alpha _2-\alpha _1^{*})$

$T_2=370^{\circ}+\frac{373.95-370}{0.003106-0.004953}\times (0.004628-0.004953)$

$T_2=370.7^{\circ} C$

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3 years ago

Elements produce their spectrum when their electrons _____.

Aleonysh [2.5K]

The correct answer is the third one: move toward the ground state. Remember please that Elements produce their spectrum when their electrons move toward the ground state. Hope this is very useful

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3 years ago

A boxed 12.0 computer monitor is dragged by friction 7.50 up along the moving surface of a conveyor belt inclined at an angle of

sasho [114]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

Below is the solution:

W done by Normal = 0. (make the incline flat, Normal force goes directly up: no work done)
W done by gravity = w*displacement = (11kg*9.8) * 7.5sin(35) = -463J 
W done by friction is the opposite of the work done by weight because the object is not moving. Therefore W done by friction = 463J

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3 years ago