Why do most sidewalks have cracks in them every few feet?

2 answers:

8 0

This is actually a really good question! The lines are actually called "contraction joints." When the sidewalk is being made, the concrete used shrinks as it dries. This shrinking can cause cracks to form in the sidewalk, so to prevent the cracks from forming randomly, the builders make thin lines. Any cracks that form should follow the path of the line, since this is where the concrete is thinnest.

Hope this helps! :)

Elodia [21]3 years ago

7 0

It's because of the landscape, it changes over time.

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A Cyclist rode at an average speed of 10mph for 15 miles. how long was the ride

Setler79 [48]

Hey there Abigaildonaimor,

A cyclist rode at an average speed of 10mph for 15 miles. How long was the ride?

Answer:

Time = Distance / Rate
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Hope this helps :D

<em>~Natasha♥</em>

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Andrei [34K]

OP already did it - CONGRATS!!

here are the steps 2 get the same ans:

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=28+8+12+48

=96g

of that 96g, 8x1=8g is due to Hydrogen

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Is a chemical property of water light sensitivity

Alinara [238K]

Answer:

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