3 years ago

Which statement best explains how density changes when a liquid becomes a gas

Physics

1 answer:

rusak2 [61]3 years ago

4 0

Answer:

c. density decreases because the molecules move farther apart

Explanation:

As a liquid is heated, the molecules move faster and move farther apart. This causes the volume to increase, which causes the density to decrease.

You might be interested in

A moving object with a decreasing velocity covers distance during

Blababa [14]

The answer is C. Less

8 0

3 years ago

An object on the surface of the earth has a force of gravity of 682 N. What is the objects mass?

valina [46]

The object's mass is around 69.592 kg

F=mg

5 0

3 years ago

A very powerful vacuum cleaner which has a hose of circular cross section can lift a brick of mass 12 kg when the hose is placed

valkas [14]

Answer:

A). 1.9 cm

Explanation:

m = Mass of brick = 12 kg

g = Acceleration due to gravity = 9.81 m/s²

r = Radius of hose

A = Area = $\pi r^2$

F = Force = $mg$

Let us assume that the pressure required to lift the brick would be atmospheric pressure

$P=\dfrac{F}{A}\\\Rightarrow P=\dfrac{F}{\pi r^2}\\\Rightarrow r=\sqrt{\dfrac{F}{\pi P}}\\\Rightarrow r=\sqrt{\dfrac{12\times 9.81}{\pi\times 101325}}\\\Rightarrow r=0.01923\ m=1.9\ cm$

The radius of the hose should be 1.9 cm

6 0

3 years ago

The larger the push, the larger the change in velocity. This is an example of Newton's Second Law of Motion which states that th

Mars2501 [29]

Answer:

According to Newton's 2nd law

The force acting on a body produces acceleration in its direction which is directly propotional to the force but inversly propotinal to the mass of tbe body.

Explanation:

a = F/m

F = ma

Where( F) is force (m) is mass and (a) is acceleration.

6 0

3 years ago

6. Convert -180° to radians

icang [17]

Answer:

-3.141593

Explanation:

3 0

3 years ago

Read 2 more answers