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s344n2d4d5 [400]

3 years ago

9

almost 500 grams of sugar can dissolve in 100 milliters of boiling water. you have a boiling solution of liquid with as much sug

at as it can hold. if you cool the solution slowly and sugar does not settle out as it cools you know the solution is

1 answer:

amid [387]3 years ago

8 0

The solution is 'supersaturated' ... holding more solute than it's supposed to be able to hold.

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When the rudder moves to the left the plane will move to the right or left?

mrs_skeptik [129]

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A charging bull elephant with a mass of 5240 kg comes directly toward youwith a speed of 4.55 m/s. You toss a 0.150- kg rubber b

bearhunter [10]

Answer:

Explanation:

mass of elephant, m1 = 5240 kg

mass of ball, m2 = 0.150 kg

initial velocity of elephant, u1 = - 4.55 m/s

initial velocity of ball, u2 = 7.81 m/s

Let the final velocity of ball is v2.

Use the formula of collision

$v_{2}=\left ( \frac{2m_{1}}{m_{1}+m_{2}} \right )u_{1}+\left ( \frac{m_{2}-m_{1}}{m_{1}+m_{2}} \right )u_{2}$

$v_{2}=\left ( \frac{2\times 5240}{5240+0.150} \right )(-4.55)+\left ( \frac{0.15-5240}{5240+0.150} \right )(7.81)$

v2 = - 16.9 m/s

The negative sign shows that the ball bounces back towards you.

(b) It is clear that the velocity of ball increases and hence the kinetic energy of the ball increases. This gain in energy is due to the energy from elephant.

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WheN a car is driven some distance the air pressure in the tyre increases,why?

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I’d say a negative charge cause opposites attract but I’m not sure

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3 years ago