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2 years ago

In which phenomenon does water change into water vapour below its

Mathematics

1 answer:

Alina [70]2 years ago

3 0

Answer:

Evaporation

Step-by-step explanation:

Evaporation is the phenomenon in which water changes into water vapour below its Boiling point.

Evaporation which has reached equilibrium with the liquid surface is said to have reached saturation.

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Make g the subject of the formula 3e + 4g = 7 + 9e

NISA [10]

Answer:

g=(7+9e-3e)/4

Step-by-step explanation:

3e+4g=7+9e

4g=7+9e-3e

g=(7+9e-3e)/4

3 0

2 years ago

Read 2 more answers

After a baseball is hit, the height h (in feet) of the ball above the ground t seconds after it is hit can be approximated by th

lubasha [3.4K]

Answer:

The ball will take 4.05 seconds to hit the ground.

Step-by-step explanation:

we have

$h=-16t^{2}+64t+3$

This is a quadratic equation (vertical parabola) open down

The vertex is a maximum

we know that

The ball hit the ground when h=0

Solve the quadratic equation

For h=0

$-16t^{2}+64t+3=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$ is equal to

$t=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^{2}+64t+3=0$

$a=-16\\b=64\\c=3$

substitute in the formula

$t=\frac{-64(+/-)\sqrt{64^{2}-4(-16)(3)}} {2(-16)}$

$t=\frac{-64(+/-)\sqrt{4,288}} {-32}$

$t=\frac{64(-)\sqrt{4,288}} {32}=-0.05\ sec$ ---> the time cannot be a negative number

$t=\frac{64(+)\sqrt{4,288}} {32}=4.05\ sec$

therefore

The ball will take 4.05 seconds to hit the ground.

4 0

2 years ago

Jason has four lengths of rope. The lengths are 3 inches, 15 centimeters, 0.3 meters, and 0.5 feet. About how much rope does Jas

Illusion [34]

About 133 inches of rope

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2 years ago

A blue whale swims at -26.3 meters. A bald eagle flies at 17.8 meters.

zvonat [6]

A bald eagle. It’s higher and the analogue value, distance away from the ocean is closer to zero, so it’s closer to sea level

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2 years ago

American Sign Language can be used to augment the communication of children with:

cricket20 [7]

Please look up "American Sign Language" (e. g., Google it). You'll find out quickly which group of children benefit from ASL.

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2 years ago