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2 years ago

The air also contained a small amount of argon.

Physics

1 answer:

andriy [413]2 years ago

8 0

Answer:

When argon changes from a gas to a liquid, the forces between the molecules become stronger so the particles become closer together and come into come into contact more often. The particles move at a less faster rate as the have less kinetic energy due to decrease in temperature. When argon changes from a liquid to a solid, the forces become even stronger so the particles are arranged in fixed positions and vibrate around a fixed point as they cannot move past each other

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True or False? Gases such as water vapor condense when they are *heated*.

scoundrel [369]

That statement is <em>false</em>.

"Condense" is what a gas does when it turns into liquid, and that's something that happens when the gas is cooled, not heated.

4 0

3 years ago

In an "atom smasher," two particles collide head on at relativistic speeds. If the velocity of the first particle is 0.741c to t

USPshnik [31]

Answer:

$W_x = 0.9156\ c$

Explanation:

given,

velocity of particle 1 = 0.741 c to left

velocity of second particle = 0.543 c to right

relative velocity between the particle = ?

for the relative velocity calculation we have formula

$W_x = \dfrac{|u_x - v_x|}{1-\dfrac{u_xv_x}{c^2}}$

u_x = 0.543 c

v_x = - 0.741 c

$W_x = \dfrac{0.543 c - (-0.741 c)}{1-\dfrac{(0.543 c)(-0.741 c)}{c^2}}$

$W_x = \dfrac{0.543 c +0.741 c)}{1+\dfrac{(0.543)(0.741)c^2}{c^2}}$

$W_x = \dfrac{1.284c}{1+0.402363}$

$W_x = 0.9156\ c$

Relative velocity of the particle is $W_x = 0.9156\ c$

5 0

3 years ago

Twin skaters approach each other with identical speeds. Then, the skaters lock hands and spin. Calculate their final angular vel

kherson [118]

Answer:

$\omega=3.135rad/s$

Explanation:

From the question we are told that:

initial Speed $V_1=2.50$

Mass $m=70.0kg$

Center of mass $d=0.0.800m\$

Generally the equation for angular velocity is is mathematically given by

$\omega=\frac{v}{r}\\\\\omega=\frac{2.50}{0.0800}$

$\omega=3.135rad/s$

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3 years ago

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lilavasa [31]

The work done is calculated by multiplying the Force by the distance. So, 10x20 = 200 joules.
I hope this is the answer you are looking for, if not good luck on finding your answer ;D

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3 years ago

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Aleks04 [339]

Answer: Option A : Technician A

Explanation:

The statement/observation, "that the starter motor used to crank diesel engines can draw up to 400 amps of current" made by Technician A is correct.

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3 years ago