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3 years ago

Of the following gases, ________ will have the greatest rate of effusion at a given temperature.

Physics

2 answers:

klio [65]3 years ago

5 0

Of the following gasses, CH4 will have the greatest rate of effusion at a given temperature.

Slav-nsk [51]3 years ago

4 0

According to Graham's law, the rate at which gases effuse (i.e., how many molecules pass through the hole per second) is dependent on their molecular weight; gases with a lower molecular weight effuse more quickly than gases with a higher molecular weight. Hope it cleared your doubt

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Choose all of the examples of balanced forces.

SVEN [57.7K]

Answer:

book on flat table

Explanation: the table pushes upward on the book while gravity pulls downward.

6 0

3 years ago

A 90.0-kg man runs at a constant speed of 11.5 m/s. what is his kinetic energy?

harina [27]

The kinetic energy possessed by the man is 517.5 Joules.

Given the following data:

Mass = 90.0 kg

Velocity = 11.5 m/s.

To find the kinetic energy of the man:

Kinetic energy is an energy that is possessed by a physical object or body due to its motion.

Mathematically, kinetic energy is calculated by using the formula;

$K.E = \frac{1}{2} MV^2$

Where:

K.E is the kinetic energy.

M is the mass of an object.

V is the velocity of an object.

Substituting the given values, we have;

$K.E = \frac{1}{2}$ × $90$ × $11.5$

$K.E = 45$ × $11.5$

Kinetic energy = 517.5 Joules.

Therefore, the kinetic energy possessed by the man is 517.5 Joules.

8 0

3 years ago

The part of a longitudinal wave where the particles are spread apart is called a______?

lilavasa [31]

Answer:

In a longitudinal wave, particles of the medium vibrate in a direction that is parallel to the direction that the wave travels. Places where particles of the medium crowd closer together are called compressions. Places where particles of the medium spread farther apart are called rarefactions.

Explanation:

3 0

3 years ago

Read 2 more answers

A(n) is a material that causes a wave to bounce off of it

bearhunter [10]

Answer;

A barrier, a surface or a boundary

Explanation;

Reflection is the property waves that occurs due to the bouncing back of a wave after it strikes a barrier.

Reflection involves change in direction of a wavefront at an interface between two different media such that the wavefront returns into the medium from which it originated. In other words, the direction of the wave changes when they bounce of a barrier or a surface.

4 0

4 years ago

Read 2 more answers

With no friction, you can use the relationship between potential and kinetic energy to predict the speed of the car at the botto

Dvinal [7]

The speed of the car at the bottom of the hill is obtained as, $v = \sqrt{2gh}$

According the principle of conservation of energy, the total potential energy of the car will be converted to maximum kinetic energy when the car is at the bottom of the hill.

$K.E = P.E\\\\\frac{1}{2} mv^2 = mgh\\\\v^2 = 2gh\\\\v= \sqrt{2gh}$

where;

v is the speed of the car at the bottom of the hill
h is the height of the hill
g is acceleration due to gravity

Thus, the speed of the car at the bottom of the hill is obtained as, $v = \sqrt{2gh}$

Learn more about conservation mechanical energy here: brainly.com/question/332163

3 0

3 years ago