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Alexandra [31]
3 years ago
11

Please help! Urgent!!! My teacher wants us to make something about energy. For instance define Kinetic energy. Then we need to b

uild something that represents it. In a past time I did volume and used a graduated cyclometer that I filled up with water and froze. This unit is energy, so anything that has to do with energy. Please give me a few ideas on what I can do as well as where I can find the supplies! Before the weekend (first weekend in march) urgent! Best idea will get brainest and a thanks!!!
Physics
1 answer:
JulsSmile [24]3 years ago
8 0
You could do something about Einstein's theory of energy... it seems like it would be a simple and easy project. E=mc^2
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An air conditioner running with R-134a on a cycle executed under the saturationdome between the pressure limits of 0.8 MPa and 0
ohaa [14]

Answer:

The COP of the system is = 4.6

Explanation:

Given data

Higher pressure  = 1.8 M pa

Lower pressure = 0.12 M pa

Now we have to find out high & ow temperatures at these pressure limits.

Higher temperature corresponding to pressure 1.8 M pa

T_{H} = 62.9 °c = 335.9 K

Lower temperature corresponding to pressure 0.2 M pa

T_{L} = - 10.1 °c = 262.9 K

COP of the system is given by

COP = \frac{T_{L} }{T_{H} -T_{L}   }

COP = \frac{335.9}{335.9 -262.9}

COP = 4.6

Therefore the COP of the system is = 4.6

8 0
3 years ago
if you have corona and you fart does it spread the corona sense its airborn?? should i start putting a mask over my anus to stop
Taya2010 [7]

Answer:

its soul for that context not sole also rip and i have no idea

Explanation:

4 0
3 years ago
Read 2 more answers
What is a combination of two or more simple machines?
Anna [14]

A compound

Explanation:

A compound machine is the combination of two or more simple machines.

An example is bicycle.

  • A simple machine is a device that is used to increase the magnitude of force.
  • It is a basic mechanical unit.
  • Examples are inclined planes, lever systems, wheel and axle.
  • A compound machine is a combination of these simple machines.

learn more:

lever brainly.com/question/5352966

#learnwithBrainly

7 0
2 years ago
A car is traveling south at a speed of 69 miles per hour and then begins traveling west but continues traveling at the same spee
alexandr1967 [171]
Velocity
Because velocity is speed with direction. In this scenario, the speed has not changed, but the direction did.
8 0
3 years ago
A car tire rotates with an average angular speed of 29 rad/s. In what time interval will the tire rotate 3.5 times? ​
meriva

Answer:

"0.758315 sec" is the appropriate choice.

Explanation:

The given values are:

Angular speed,

= 29 rad/s

or,

= \frac{29}{2 \pi} \ rps

Tire rotates,

= 3.5 times

Now,

The time interval will be:

⇒  \Delta t=\frac{3.5}{\frac{29}{2 \pi} }

⇒       =\frac{2 \pi\times 3.5}{29}

⇒       =\frac{21.99}{29}

⇒       =0.758315 \ sec

8 0
3 years ago
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