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Dahasolnce [82]
3 years ago
6

PLEASE HELP ME WITH MY QUIZ!!!!

Physics
1 answer:
egoroff_w [7]3 years ago
6 0

Answer:

The answer is b the radiation of the suns electromagnetic waves

Explanation:

I took the Quiz to.

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Calculate the kinetic energy of a car of mass 800kg moving at 100 kmph.
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Answer:

KE = 308642.02469136 J

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3 years ago
87) Determine the equivalent resistances for the following circuits.
stepladder [879]

Answer:

15    and  11 ohms

Explanation:

First one =   For the parallel resistors 1 / (1/6 + 1/6 + 1/6) =   1/ (3/6 ) = 6/3 = 2 ohms   then add the 3 and the 10  = 15 ohms

second one    for the parallel portion   equiv =    (10+2)*24 / ( (10+2 + 24) = 8

  then add the  3 in series = 11 ohms

8 0
2 years ago
A calorimeter has a heat capacity of 1265 J/oC. A reaction causes the temperature of the calorimeter to change from 22.34oC to 2
Ray Of Light [21]
<h2>Heat released in this process is 3516.7 J</h2>

Explanation:

A calorimeter has a heat capacity of 1265 J/°C

Heat capacity of calorimeter = 1265 J/°C

A reaction causes the temperature of the calorimeter to change from 22.34°C to 25.12°C

Change in temperature = 25.12 - 22.34 = 2.78°C

Heat released = Heat capacity of calorimeter x Change in temperature

Heat released = 1265 x 2.78 = 3516.7 J

Heat released in this process is 3516.7 J

5 0
4 years ago
Read 2 more answers
How do the structures of the respiratory system work together to supply my body with oxygen and get rid of carbon dioxide? do no
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Explanation:

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5 0
3 years ago
Problem 3 A person is standing in a room. Air temperature is 20 C. Assuming that his surface temperature is 30 C, calculate the
PilotLPTM [1.2K]

Answer:

the heat flux between the person and the room = 6.0036 x 10 17 w/m2

Explanation:

The appropriate formular for the steffan boltzmann constant is used as it relates to the heat flux and the steps is as shown in the attachment.

6 0
3 years ago
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