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frozen [14]
3 years ago
5

When someone pushes a large rock down a hill what energy change occurs?

Physics
1 answer:
Snezhnost [94]3 years ago
4 0

kinetic energy into potential energy.

when the rocks go down it will be kinetic energy but when the rock reach the bottom of the hill it will be converted into potential energy.

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An airplane starts from rest and accelerates at a constant 3.00 m/s2
katrin2010 [14]

Answer:600 m

Explanation:

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3 years ago
Why are lanthanum and actinium at the bottom of the periodic table?
7nadin3 [17]
The periodic table is organized in a way in which trends with certain things such as ionization energy or atomic radius would "work out". It also have increasing atomic mass.

It's also organized to tell you the electron and proton of each element, least to greatest. (the atomic number) Example: Chlorine has 17 protons and 17 e-
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(Top to bottom)

Lanthanum and actinium play the role of being in the bottom because of their large atomic radius and having many protons/electrons.
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8 0
3 years ago
If the two forces on an object are equal in size and opposite in direction, the forces are balanced, and no change
murzikaleks [220]

Answer:

a rope being pulled from both sides with equal force

Explanation:

:)

4 0
3 years ago
During one cycle, a refrigerator removes 500 J from a cold reservoir and discharges 800 J to its hot reservoir. (a) What is its
Paraphin [41]

Answer:

a)COP = 1.67

b) W = 300 J

Explanation:

given,

refrigerator removes = 500 J from a cold reservoir

discharge = 800 J to its hot reservoir

a) COP = \dfrac{Q}{w}      

   COP = \dfrac{500}{800-500}

   COP = 1.67                        

b) heat per cycle exhausted to the

     W + 500 = 800                        

     W = 800- 500                        

      W = 300 J                                  

5 0
4 years ago
Explain the difference between the four states of matter.
pishuonlain [190]

Answer:

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Explanation:

7 0
3 years ago
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