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3 years ago

14

When two pool balls collide, what happens to the momentum of each one?

1 answer:

Schach [20]3 years ago

7 0

Answer:

They slow down.

Explanation:

The collided so the slow down till they stop.

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What happens to water in the atmosphere as it rises?

Lunna [17]

The correct answer is that water, as it rises in the atmosphere, condenses and forms clouds - the correct answer is b.

Other options are false, for example:
a. It evaporates.
-this is the beginning of the process: water needs to evaporate to be in the atmosphere - so it's before the process that the question addresses

Also it is not used up: otherwise Earth would run out of water.

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4 years ago

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Plants in a tropical rain forest usually have

Karolina [17]

The correct response is B .

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3 years ago

What are the two main<br> categories of particles and<br> antiparticles?

Mice21 [21]

Answer:

Particles can be classified as hadrons – baryons and mesons – and leptons, each with its anti-particle, and they should know that interactions between these particles can be described in terms of transfer of other particles known as vector bosons.

Explanation:

Your Welcome, if you could give me Brainlist I would appreciate it!

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3 years ago

If the density of the fuel is 0.821 g/ml, what mass of fuel has the airplane taken on?

bija089 [108]

<em>Mass of fuel has the airplane took on = 167.89 kg</em>

$\boxed{\boxed{\bold{Further~explanation}}}$

Density is a quantity derived from the mass and volume

density is the ratio of mass per unit volume

With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller type of mass

The unit of density can be expressed in g / cm3 or kg / m3

Density formula:

$\large{\boxed{\bold{\rho~=~\frac{m}{V} }}}$

ρ = density

m = mass

v = volume

A common example is the water density of 1 gr / cm3

If we look at fuel capacity data such as Airbus which has a maximum capacity of 204, 5 liters then the mass of fuel it carries is

ρ = 0.821 gr / ml = 0.821 kg / l

mass = ρ . V

mass = 0.821 kg / l . 204.5 liters

mass = 167.89 kg

So the mass of fuel carried by aircraft is 167.89 kg

$\boxed{\boxed{\bold{Learn~more}}}$

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Keywords: density, mass, volume, aircraft, fuel, derivative quantities

7 0

3 years ago

Read 2 more answers

how much heat is lost when 71.07g of steam at 100 degrees condenses to form liquid water at 100 degrees

alukav5142 [94]

Answer:

Q = 160.36[kJ], is the heat lost.

Explanation:

This is a thermodynamic problem where we can find the latent heat of vaporization, at a constant temperature of 100 [°C].

We know that for steam at 100[C], the enthalpy is

$h_{gas} = 2675.6[kJ/kg]$

For liquid water at 100[C], the enthalpy is

$h_{water} = 419.17[kJ/kg]$

Therefore

$h_{g-w} = 2675.6-419.17 = 2256.43[\frac{kJ}{kg} ]$

The amout of heat is given by:

$Q=h_{g-w}*m\\ where:\\m = mass = 0.07107[kg] = 71.01[g]\\Q = heat [kJ]\\Q =2256.43*0.07107\\Q=160.36[kJ]$

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3 years ago