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AlekseyPX
3 years ago
13

What are three ways lakes can form?

Chemistry
1 answer:
quester [9]3 years ago
4 0
Just choose 3

1) Lakes can form in hollows left by meteorite impacts (e.g. Clearwater Lakes, Quebec, Canada).

2) Lakes can form in the craters formed by volcanoes (e.g. Crater Lake, Oragon)

3) Lakes can form when a river is damed by a natural rock fall or man (e.g. Lake Mede)

4) Lakes can form where glaciers have scooped out the rock from the floor of a valley (e.g. Lake Geneva)

5) Lakes can form where block faulting lowers the land (e.g. lake Baikal)

6) lakes can form in natural depressions in the land (e.g. Lake Victoria)
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What is percentage of nitrogen is in nf2?
solmaris [256]
Molar mass NF₂ => 52.00 g/mol

Atomic mass N => 14 a.m.u

% N =  ( Atomic mass N / molar mass NF₂ ) x 100

( 14 / 52 ) x 100 = 26.92%

hope this helps!




6 0
3 years ago
If there are many forces acting on an object how can the net force be 0
zysi [14]
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4 0
3 years ago
A boy swings a rubber ball attached to a string over his head in a horizontal, circular path. The piece of string is 1.15 m long
gregori [183]

Answer:

v = 16.49 m/s

Explanation:

Given that,

Length of the string, l = 1.15 m

The ball makes 137 complete turns each minute.

We know that, 1 turn = 6.28 rad

137 turns = 860.79 rad

1 min = 60 s

\omega=\dfrac{860.79\ rad}{60\ s}\\\\=14.34\ rad/s

We need to find the tangential velocity of the ball. It can be given by

v=r\omega\\\\=1.15\times 14.34\\\\v=16.49\ m/s

So, the tangential velocity of the ball is 16.49 m/s.

5 0
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GenaCL600 [577]

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Which gas would you expect to have the fastest diffusion rate?
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