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3 years ago

7

What would happen if there was no condensation stage in the water cycle?

1 answer:

slavikrds [6]3 years ago

3 0

Without condensation, the water vapor could not turn into clouds and liquids then which means it could not fall back down through things like rain or hail. Eventually, all water on earth would then become water vapor and we wouldn't have any water in liquid form.

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What would be the acceleration in a bus moving with uniform velocity and why

jeka57 [31]

Answer:

Then its acceleration is zero.

Explanation:

Velocity → Uniform → Constant

→ Change in Velocity = 0

A= $\frac{v-m}{e}$ = (v=m)

a=0

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3 years ago

Convergent faults _____.

marissa [1.9K]

Answer:

Move towards each other and create mountains

8 0

3 years ago

Which diagram correctly represents the electric field lines between two small electrically charged spheres?

hjlf

Answer:

hehe

Explanation:

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3 years ago

Would sound travel faster in a thick piece of metal (high density) or a large hollow piece of metal (low density)?

KiRa [710]

Answer:

See the explanation below

Explanation:

The speed of sound waves can be calculated using the following equation:

$v_{s}=\sqrt{\frac{E}{ro} } \\where:\\E = Young's modulus [GPa]\\ro = density of the material [kg/m^3]$

Let's do the exercise of comparing two materials one denser than the other, as is steel and aluminum

ro_steel = 7500 [kg/m^3]

ro_aluminum = 2700 [kg/m^3]

E_steel = 200 [GPa]

E_aluminum = 70 [GPa]

Now replacing the values in the equation for each material.

$v_{steel}=\sqrt{\frac{200*10^9}{7500}}\\ v_{steel}=5163[m/s]$

And for the aluminum

$v_{aluminum}=\sqrt{\frac{70*10^9}{2700} }\\ v_{aluminum}=5091.75[m/s]$

In this way we can see that sound propagates faster in denser materials.

6 0

3 years ago

A plane can fly 390 miles in the same time as it takes a car to go 120 miles. If the car travels 90 mph slower than the plane, f

never [62]

thats a hella slow plane

3 0

3 years ago