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liubo4ka [24]
3 years ago
7

Sand is made of tiny pieces of rock that have been worn

Physics
2 answers:
pav-90 [236]3 years ago
6 0
The formation of sand is physical damage because the rock that is worn down is basically broken. The rocks are broken.
PSYCHO15rus [73]3 years ago
5 0

Answer:

Sand is a form of physical change because it shows how one object is being worn out (broken down) into another object by nature.

Explanation:

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Which of the following is a TRUE statement about the differences between electromagnetic and mechanical waves?
Butoxors [25]

' D ' is the only correct statement on the list.


Electromagnetic waves are capable of traveling through

many substances, and they're also capable of traveling

through vacuum. Mechanical waves can't travel in vacuum.

8 0
3 years ago
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Joe has a mass of 40 kg, and Sally has a mass of 25 kg. They sit in class with a separation of 6 meters. Find the gravitational
goldfiish [28.3K]

Answer:

hmmmmmmmm

Explanation:

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How do we determine the conditions that existed in the very early universe? A We can only guess at the conditions, since we have
lakkis [162]

Answer:

D By looking all the way to the cosmological horizon, we can see the actual conditions that prevailed all the way back to the first instant of the Big Bang.

Explanation:

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5 0
3 years ago
1000 kg of water initially at 6 m/s runs through a hydro-generator. If the water leaves the generator at velocity of 4 m/s, and
r-ruslan [8.4K]

Answer:

8.00 kJ

Explanation:

The first thing is to determine what quantities are there.

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final velocity, v = 4 m/s

the generator is operating at 100 % efficiency, so there is no energy loss.

The kinetic energy, Ek is converted to electrical energy, therefore Ek = electrical energy.

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3 years ago
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Answer:

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...

Qué ejercicios realizar

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Clase aeróbica. ...

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Bicicleta. ...

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Natación.

Explanation:

dame coronita por favor

8 0
3 years ago
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