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3 years ago

Which best describes the transition from gas to liquid?

Physics

2 answers:

m_a_m_a [10]3 years ago

8 0

Answer:

A Energy must be removed because particles in liquid move more slowly

Explanation:

Gas particles move rapidly colliding with each other, this is as a result of high mobility rate of gases than liquid. Also gases have higher entropy compared to liquid.

The removal of energy from the gas molecules can reduce the rate of the gas particles collision, thereby leading to its transition to liquid which move at lower rate than gas particles.

Correct option is A "Energy must be removed because particles in liquid move more slowly"

GuDViN [60]3 years ago

5 0

Energy must be removed because particles in liquid move more slowly

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In February 1955, a paratrooper fell 362 m from an airplane without being able to open his chute but happened to land in snow, s

serious [3.7K]

Answer:

s = 0.9689 m

Explanation:

given,

Height of fall of paratroopers = 362 m

speed of impact = 52 m/s

mass of paratrooper = 86 Kg

From from snow on him = 1.2 ✕ 10⁵ N

now using formula

F = m a

a = F/m

$a = \dfrac{1.2 \times 10^5}{86}$

$a =1395.35\ m/s^2$

Using equation of motion

v² = u² + 2 a s

$s =\dfrac{v^2}{2a}$

$s =\dfrac{52^2}{2\times 1395.35}$

s = 0.9689 m

The minimum depth of snow that would have stooped him is s = 0.9689 m

8 0

3 years ago

Which statement is valid.

Serhud [2]

Answer:

as an object gains speed it gains kinetic energy

Explanation:

i am mixed with the very first one i dont really know if its right so if its wrong my bad

3 0

3 years ago

A solution is prepared by dissolving 98.6 g of nacl in enough water to form 875 ml of solution. calculate the mass % of the solu

Crank

I'm guessing 10.6% based on the following information:

Mass soln = density×volume=1.06×875=927.5g
MNaCl/Msoln×100=%M
which means this:

%M=98.6927.5×100=10.6

Was this helpful? I hope so.

7 0

3 years ago

A parallel-plate capacitor in air has a plate separation d = 4 mm and square plates with area A = 25.0 cm^2. The plates are main

Nikolay [14]

Answer: $179.79 \times 10^{-9} J$

Explanation:

Given

Separation (d)=4 mm

Area of cross-section $=25 cm^2$

Potential difference=255 V

$C=\frac{\epsilon A}{d}=5.53 \times 10^{-12}F$

charge $(Q)=CV=5.53\times 225=1411.10\times 10^{-12} C$

Energy stored $=\frac{cv^2}{2}$

$E=\frac{5.53\times 10^{-12} 255^2}{2}=179.79 \times 10^{-9} J$

3 0

3 years ago

I am unsure about what I'm suppose to do

ahrayia [7]

Answer:

1st box: increase

supporting evidence: As the girl swings downward she will gain more height due to the increasing force pushing her

2nd box: increase

supporting evidence: the magnetic force of the earth will increase the kinetic energy of the girl when she goes downward slightly as she swings forward

3rd box :increase

supporting evidence:As the girl swings downward she will gain more speed due to the gravitational pull

Explanation:

5 0

3 years ago