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3 years ago

A substance is boiled repeatedly and stirred, but the solute never mixes with the solvent. Which best describes why

1 answer:

maks197457 [2]3 years ago

3 0

Either Solute or solvent may have hydrogen bond in it but another one has opposite. So, in situation of un-like characteristics, they can't dissolve by any means!

Hope this helps!

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What is the force of friction between the dragsters tires and the track if the dragster mass is 300kg and the coefficient of the

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Ff=μN=μmg=0.8*300*10=2400 N

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3 years ago

A charged atom is called a(n) _____.

katrin2010 [14]

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3 years ago

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3 years ago

A window washer on a hanging platform cleans the outside of windows on a skyscraper. The washer hoists the platform up the side

forsale [732]

Answer:

Acceleration of the platform = - 1.8 m/s²

Explanation:

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3 years ago

a skim jumper travels downa a slope and leaves the ski track moving in the horizontal direction with a speed of 20 m/s as in the

Nadya [2.5K]

Answer:

85.1 m

Explanation:

The x and y coordinates are as follows

$x=dcos\theta$

$y=dsin\theta$ where d is distance travelled and $\theta$ is the slope of landing

The horizontal distance travelled is $x=vt= dcos\theta$ where t is time take to travel and v is the velocity

Making t the subject, $t=\frac {dcos\theta}{v}$

Also, the vertical distance $y=0.5gt^{2}=dsin\theta but t= t=\frac {dcos\theta}{v}$

Therefore,

$dsin\theta=0.5g(\frac {dcos\theta}{v})^{2}$ and making d the subject of the formula

$d=\frac {2v^{2}sin\theta}{gcos^{2}\theta}$

Substituting v for 20 m/s, $\theta$ for $39*{o}$ and g for $9.81 m/s^{2}$

$d=\frac {2*(20 m/s)^{2}*sin39^{o}}{9.8 m/s ^{2}cos^{2}39^{o}}$

d=85.06100825

Rounding off, d=85.1 m

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3 years ago