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3 years ago

To make them gas, you have to give liquids yes or no?

Physics

2 answers:

jeka943 years ago

6 0

Answer:

Yes

Explanation:

pantera1 [17]3 years ago

5 0

To make them gas, you have to give liquids heat energy.. Explanation:
In order to make liquids change into gaseous state, we need to add heat to the liquid substance. This is because heating the liquid will cause the molecules of a liquid to gain heat due to which they will collide rapidly with each other.
This will lead to move the molecules away from each other and then this will lead to a change in their phase.
For example, when we boil water then at a temperature of it starts to change into vapor phase.

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A U-shaped valley is most often formed by

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formed by the process of glaciation.

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3 years ago

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What is an area of physics that studies motion and its causes?

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It's mechanics
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3 years ago

The momentum of an electron is 1.75 times larger than the value computed non-relativistically. What is the speed of the electron

FrozenT [24]

Answer:

Speed of the electron is 2.46 x 10^8 m/s

Explanation:

momentum of the electron before relativistic effect = $M_{0} V$

where $M_{0}$ is the rest mass of the electron

V is the velocity of the electron.

under relativistic effect, the mass increases.

under relativistic effect, the new mass M will be

M = $M_{0}/ \sqrt{1 - \beta ^{2} }$

where

$\beta = V/c$

c is the speed of light = 3 x 10^8 m/s

V is the speed with which the electron travels.

The new momentum will therefore be

==> $M_{0}V/ \sqrt{1 - \beta ^{2} }$

It is stated that the relativistic momentum is 1.75 times the non-relativistic momentum. Equating, we have

1.75 $M_{0} V$ = $M_{0}V/ \sqrt{1 - \beta ^{2} }$

the equation reduces to

1.75 = $1/ \sqrt{1 - \beta ^{2} }$

square both sides of the equation, we have

3.0625 = 1/ $(1 - \beta ^{2} )$

3.0625 - 3.0625 $\beta ^{2}$ = 1

2.0625 = 3.0625 $\beta ^{2}$

$\beta ^{2}$ = 0.67

β = 0.819

substitute for $\beta = V/c$

V/c = 0.819

V = c x 0.819

V = 3 x 10^8 x 0.819 = 2.46 x 10^8 m/s

6 0

4 years ago

A positive charge is moved from point a to point b along an equipotential surface. How much work is performed or required in mov

snow_lady [41]

Answer:

The work done is zero

Explanation:

No work is performed or required in moving the positive charge from point A to point B

3 0

4 years ago

If a Ferrari, with an initial velocity of 10m/s, accelerates at at rate of 50m/s/s for 3 seconds, what will its final velocity b

seraphim [82]

Answer:

160 m/s

Explanation:

The Ferrari is moving by uniformly accelerated motion, with constant acceleration of a = 50 m/s^2, and initial velocity u = 10 m/s. The velocity at time t of the car is given by

$v(t)= u +at$

where

u = 10 m/s

a = 50 m/s^2

If we substitute t = 3 s into the equation, we can find the velocity of the car after 3 seconds:

$v(3 s)=10 m/s + (50 m/s^2)(3 s)=160 m/s$

5 0

3 years ago