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taurus [48]
3 years ago
15

Please answer fast ————-

Physics
1 answer:
Citrus2011 [14]3 years ago
4 0
I’m sorry i don’t know the answer
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5. How much heat is generated when an
Mila [183]

Answer:

I HOPE THIS IS CORRECT

Explanation:

Power of water =2 kw=2000w

Mass of water =200kg

difference in temperature ΔT=70−10=60oC

Concept

energy required to heat the water = energy given by water in time t=pt

energy required to increase tempeature of water by 60oC,Q=msΔT

S= specific heat =4200J/kgoC

              pt=msΔT

   2000×t=200×4200×60

      t=25200  

or   t=25.2×103sec.

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3 years ago
Can someone explain how exactly to calculate the net force? Do you subtract the smaller number from the larger number? Any help
aleksley [76]

Explanation:

Let's say right is positive and left is negative.

F₁ = -150 N

F₂ = 220 N

Fnet = F₁ + F₂

Fnet = -150 N + 220 N

Fnet = 70 N

The magnitude of Fnet is 70 N, and since it's positive, the direction is to the right.

And since Fnet isn't 0, the force is unbalanced and the motion is changing.

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3 years ago
What is the best description of a wave
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Answer:

When the ocean floors move it makes a wave

Explanation:

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When it falls though a vaccum,it is subjected to only one external force,the gravitational force.
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The law that states that the farther away a galaxy is, the faster it is moving away from us is called ______.
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Explanation: Hubble's law that states that the farther away a galaxy is, the faster it is moving away from us

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