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arsen [322]
2 years ago
11

How does Earth's surface and the structures on the surface change as a result of an earthquake?

Physics
1 answer:
olga2289 [7]2 years ago
8 0

THE CHANGE IN EARTH SURFACE IS DUE TO VIBRATION AND COLLISION IN EARTH TECTONIC PLATES

Explanation:

  • VIBRATION is the change in the stable state/equilibrium state caused by increased pressure in a particular object or a surface due to electro magnetic wave
  • COLLISION is the meeting point of two or more surfaces or the objects
  • During earthquake the tectonic plates of the earth surface begins to collide or cause any irregular drastic movements
  • This is due to the vibration caused by earthquake
  • This causes the shake in the upper surface which results in construction damage and calamities
  • This causes drastic change in the surface of the earth.
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Refrigerant-134a enters the condenser of a residential heat pump at 800 kPA and 35oC at a rate of 0.018 kg/s and leaves at 800 k
Assoli18 [71]

Answer:

(A) COP = 2.64

(B) rate of heat absorption= 1.9637 kW

Explanation:

mass flow rate (m) = 0.018 kg/s

work input (Win) = 1.2kW

inlet pressure (P1) = 800kPa

inlet temperature (T1) = 35 degree Celsius

h1 = 271.24 KJ/Kg

outlet pressure (P2) = 800 kPa

outlet temperature (T2) = ?

entalphy (h2) = 95.48 KJ/Kg

The entalphies are gotten from tables for refrigerant 134a at the temperatures and pressures above

(A) COP = Qh ÷ Win

     where Qh  = m(h1 -h2) from the energy balance equation

     Qh = 0.018 ( 271.24 - 95.48 ) = 3.1637 kW

     COP = 3.1637 ÷ 1.2 = 2.64

(B) rate of heat absorption = Qh - Win

    = 3.1637 - 1.2 = 1.9637 kW

5 0
3 years ago
Big Bee has a mass of 5 kg and hits a newly cleaned windshield accelerating at a rate of 2 m/s2.
Juli2301 [7.4K]

Answer

The Little Bee will have a greater force of  12N

<u>Explanation</u>

As we know that Force  is equal to the product of mass and acceleration (F=ma)

The Force with which the Big Bee will hit the windshield =  (5kg x 2m/s^2)

Force of Big Bee= 10 Newton (N)

The Force with which the Little Bee will hit the windshield = (3kg x 4m/s^2)

Force of Little Bee = 12N

Hence, the little bee will hit the windshield with a greater force.  

8 0
3 years ago
The mining-resource cycle determines the use of ore materials. Which step is not part of the cycle?
ExtremeBDS [4]

Answer:

c) marketing and selling products that use ore materials

8 0
3 years ago
While skiing in Jackson, Wyoming, your
grin007 [14]
Hello!

Work is equal to negative change in PE and PE=mgh and Power is change in work/change in time

So we have 

56.1kg * 9.80m/s^2 * 16m = 8796.5 J of PE at top of run and -8796.5J of work done also

if it takes him 12s then we need to find the time gravity alone would bring him to the bottom. we get

16m=1/2at^2 and solving for t we get 
t=sqrt(32/9.80m/s^2)=1.81s

so the difference in time is 12-1.8=11.2s

now we can find avg power=work/time = 8796.5J/11.2s = 785W or 785J/s

Hope this helps! Any questions please ask! Thank you!
8 0
3 years ago
Help please, what does gravitational force do according to these answer choices?
laiz [17]

Answer:

the answer is C

Explanation:

gravity forces down not up or sideways.

5 0
3 years ago
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