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3 years ago

What do we call changes between solid liquid and gaseous forms of a substance

Physics

2 answers:

Nadusha1986 [10]3 years ago

6 0

Answer:

a change of state

Explanation:

const2013 [10]3 years ago

5 0

<u>We call changes between solid liquid and gaseous forms of a substance as phase change or change of state.</u>

<u>Explanation:</u>

To change a substance from one state to another, extreme temperatures or pressures are required. Sometimes when a substance doesn't change states we should use all the ideas when that happens. To create a solid, we should decrease the temperature by a huge amount and then add pressure. For example, oxygen will solidify at -361.8 degrees Fahrenheit at standard pressure. However, it will freeze at warmer temperatures when the pressure is increased.

Phase changes happen when a substance reach some special points. Sometimes when a liquid becomes a solid a freezing point or melting point is used to measure the temperature at which a liquid changes into a solid. Some of the phase changes are: Condensation, Freezing, Melting.

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Answer:

Explanation:

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3 years ago

A baseball is thrown at an angle of 20° relative to the ground at a speed of 25 m/s if the ball was caught 50 m from the thrower

scoray [572]

Answer:

2.1 s

Explanation:

The motion of the ball is a projectile motion. We know that the horizontal range of the ball is

$d = 50 m$

And that the initial speed of the ball is

$u=25 m/s$

at an angle of

$\theta=20^{\circ}$

So, the horizontal speed of the ball (which is constant during the entire motion) is

$u_x = u cos \theta = 25 \cdot cos 20^{\circ} = 23.5 m/s$

And since the horizontal range is 50 m, the time taken for the ball to cover this distance was

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which is the time the ball spent in air.

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3 years ago

Name the proces by which heat flows in solids

Solnce55 [7]

Answer:

conduction

Explanation:

conduction is the movement of heat from one point to another on a metal.

Hope it helps.

6 0

3 years ago

Compare and contrast CLF and LED bulbs.

Arte-miy333 [17]

Explanation:

Comparison Chart

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3 years ago

Hydrostatic pressure is deadly to sea creatures true or false

Doss [256]

It is to some sea creatures. Like the ones with air filled areas like lungs and swim bladders

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4 years ago

Read 2 more answers