All categories

3 years ago

Do molecules move in all states of matter?

Physics

1 answer:

N76 [4]3 years ago

8 0

Answer:

Explanation:

solid: the particles vibrate but generally don't move

liquid: vibrate move and slide past each other whilst touching another molecule

gas: molecules are able to move freely and can also vibrate

You might be interested in

What industry uses extremely large equipment?

mariarad [96]

Answer:

mining

Explanation:

because they use the most heavy duty machines

7 0

3 years ago

If you push a 900N refrigerator with the same force as you lift a 40N dumbbell, the dumbbell will move faster. Which of Newton’s

svetlana [45]

This is Newton's second law of motion.

It states that Force exerted on a moving object is directly proportional to its product of mass and acceleration.

i.e Force(F) = Mass(M) × Acceleration(A)

Because Force is constant here, reducing the weight of the body the force is applied to consequently reduces its mass.

If mass is reduced, the body's acceleration increases hence increasing its speed.

That is why the 40N dumbbell move faster.

3 0

3 years ago

you stand on a straight desert road at night and observe a vehicle approaching. this vehicle is equipped with two small headligh

inysia [295]

Answer:

The distance that you marginally able to discern that there are two headlights rather than a single light source is 6.084 km

Explanation:

Given:

d = distance = 0.679 m

λ = wavelength of the light = 537 nm = 537x10⁻⁹m

dp = pupil diameter = 4.81 mm = 0.00481 m

Question: What distance, in kilometers, are you marginally able to discern that there are two headlights rather than a single light source, dx = ?

For the separation of the peak from the central maximum it is:

$sin\theta =\frac{\lambda }{d_{p} } =\frac{537x10^{-9} }{0.00481} =1.116x10^{-4}$

In this case, the two small sources of the headlights have the same angle as the images that form inside the eye

$d_{x} =\frac{d}{sin\theta } =\frac{0.679}{1.116x10^{-4} } =6.084x10^{3} m=6.084km$

7 0

4 years ago

A paint brush is dropped from the top of a tall ladder and free falls to the ground. What changes, if any, would be observed of

muminat

Answer:

Explanation:

As the paint brush is dropped from the top of a tall ladder it started free falling

i.e. velocity of brush increases as it falls down due to the acceleration provided by gravity.

We know acceleration due to gravity is the attraction experienced by the object due to earth attraction

Value of acceleration due to gravity is constant i.e. $9.8\ m/s^2$

Therefore the correct choice is

velocity is increasing and acceleration is constant

4 0

4 years ago

What happens to a current when the electric field in the wire increase

Gnom [1K]

Answer:

If the voltage is increased then the electric field is higher, and electron velocity (average) is proportional to this field. Then you have an increase in speed. And current is total charge passing per time unit, so current is proportional to velocity value of charge (and to voltage in resistors and wire).

Explanation:

5 0

4 years ago

Do molecules move in all states of matter?​

Do molecules move in all states of matter?