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expeople1 [14]
2 years ago
11

What is the change in the internal energy of a system that does 600 joules of work and absorbs 800 joules of heat?

Physics
2 answers:
Fofino [41]2 years ago
6 0

Answer:

D. 200J

Explanation:

Sonja [21]2 years ago
3 0

\huge{\color{red}{\fbox{\textsf{\textbf{Answer}}}}}

200J

Explanation:

Change in the internet energy = Heat aborsbed - work done

800 - 600

200 J

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The average distance of the planet mercury from the sun is 0.39 times the average distance of the earth from the sun. How long i
Stels [109]

Answer:

T_1=0.24y

Explanation:

Using Kepler's third law, we can relate the orbital periods of the planets and their average distances from the Sun, as follows:

(\frac{T_1}{T_2})^2=(\frac{D_1}{D_2})^3

Where T_1 and T_2 are the orbital periods of Mercury and Earth respectively. We have D_1=0.39D_2 and T_2=1y. Replacing this and solving for

T_1^2=T_2^2(\frac{D_1}{D_2})^3\\T_1^2=(1y)^2(\frac{0.39D_2}{D_2})^3\\T_1^2=1y^2(0.39)^3\\T_1^2=0.059319y^2\\T_1=0.24y

5 0
3 years ago
Which of the following choices concerning the net magnetic flux through any enclosed surface is true according to Gauss' law for
11Alexandr11 [23.1K]

Answer:

e. The net magnetic flux in this case would be equal to zero.

Explanation:

As per Gauss law of magnetism we need to find the net magnetic flux through a closed loop

here we know that net magnetic flux is the scalar product of magnetic field vector and area vector

so here we have

\int B. dA = net magnetic flux

since we know that magnetic field always forms closed loop so if we find the integral over a closed loop

then in that case the value of the close integral must be zero

so correct answer would be

e. The net magnetic flux in this case would be equal to zero.

6 0
3 years ago
50°C is equivalent to a 82 F b- 90"F c 122"F
andre [41]

Answer:

50°C = 122 Fahrenheit

Explanation:

Here, we need to convert 50°C to F i.e. Fahrenheit. The conversion formula from degree Celsius to Fahrenheit is as follows :

^{\circ}F=(^{\circ}C\times \dfrac{9}{5})+32

Where, ^{\circ}C=50^{\circ}C

^{\circ}F=(50\times \dfrac{9}{5})+32

^{\circ}F=122^{\circ} F

So, 50 degree Celsius is equal to 122 degree Fahrenheit. Hence, this is the required solution.

6 0
3 years ago
2.2 kg box is being dragged to right with 31.06 N force and accelerating at 3.2 m/s^2 how strong is force of friction acting on
insens350 [35]

24. 02 N force of friction acting on the box.

<h3 /><h3>What is force?</h3>

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Force = mass. acceleration

Force = (2.2).(3.2)

Force = 7.04 N

Total force applied is 31.06 N

Frictional force = 31.06 - 7.04

Frictional force = 24. 02 N

24. 02 N force of friction acting on the box.

<h3 />

To learn more about force refer to the link:

brainly.com/question/13191643

#SPJ1

4 0
1 year ago
What is the current flowing through a 10 resistor in a parallel circuit with a 120 V potential difference across it?
Elena L [17]

Answer:

let current flow be x

Explanation:

than we know potential difference = energy supply / charge then 120 = 10 /x then x=12 therefore pd = 12 v

5 0
3 years ago
Read 2 more answers
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