All categories

2 years ago

The speed of molecules is indirectly related to a measurement called _____.

Physics

2 answers:

Lubov Fominskaja [6]2 years ago

6 0

Answer : (c) temperature is the correct option.

Explanation :

The speed of molecules is directly proportional to temperature. If the temperature of the system is increased, the molecules start vibrating i.e. their kinetic energy increases which in turn increase its velocity.

From kinetic theory of gases,

$v_{rms}=\sqrt{\dfrac{3\ RT}{M}}$ ........(1)

where,

R is the gas constant

T is temperature

M is molar mass

So, from equation (1) it is clear that velocity is directly proportional to temperature.

Hence, the correct option is (B) " temperature"

seraphim [82]2 years ago

4 0

The average speed of all the molecules in an object
or sample of a substance is related to its temperature ...
and not indirectly at all.

You might be interested in

Scientists can use spectral analysis of stars to determine which of the following?

RoseWind [281]

I do believe all of these but core elements can be determined by spectroscopy which includes the use of electromagnetic radiation. Both the surface and core temperature can be measured using light. Surface elements can be found because the absorption lines of different elements in the spectra of the star, but I haven't heard anything about using spectral analysis for core elements.

4 0

2 years ago

Read 2 more answers

A force of 8.0 N is along x direction, another force of 6.0 N is along +y direction. If both forces are acting on a point object

Darya [45]

Answer:

Resultant force, R = 10 N

Explanation:

It is given that,

Force acting along +x direction, $F_x=8\ N$

Force acting along +y direction, $F_y=6\ N$

Both the forces are acting on a point object located at the origin. Let the resultant force of the object is given by R. So,

$R=\sqrt{F_x^2+F_y^2+F_xF_y\ cos\theta}$

Here $\theta=90^{\circ}$

$R=\sqrt{F_x^2+F_y^2}$

$R=\sqrt{8^2+6^2}$

R = 10 N

So, the resultant force on the object is 10 N. Hence, this is the required solution.

6 0

2 years ago

The atmosphere of Neptune and Uranus have a blue color because of which gas?

kirza4 [7]

They are blue because of hydrogen helium and methane

5 0

2 years ago

HELP ASAP PLEASE<br><br> Which of the following mechanical waves have the same energy?

serious [3.7K]

Answer:

1 and 4 is the answer

6 0

2 years ago

Read 2 more answers

Whats the force of gravitation of a 10kg rock and 100kg boulder which are 5 meters apart

spayn [35]

Answer:

F = 2.6692 x 10⁻⁹ N

Explanation:

Given,

The mass of the rock, m = 10 kg

The mass of the boulder, M = 100 kg

The distance between them, d = 5 m

The gravitational force between the two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them. It is given by the formula

<em> F = GMm/d² newton</em>

Where,

G - Universal gravitational constant

Substituting the given values,

F = 6.673 x 10⁻¹¹ x 100 x 10 / 5²

F = 2.6692 X 10⁻⁹ N

Hence, the force between the two bodies is, F = 2.6692 X 10⁻⁹ N

6 0

2 years ago