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adoni [48]
3 years ago
12

Plz help don’t understand

Physics
1 answer:
timama [110]3 years ago
3 0

Answer:

he at 100k

Explanation:

All particles have energy, and the energy varies depending on the temperature the sample of matter is in, which determines if the substance is a solid, liquid, or gas. Solid particles have the least amount of energy, and gas particles have the greatest amount of energy.

The temperature of a substance is a measure of the average kinetic energy of the particles. A change in phase may occur when the energy of the particles is changed.

There are spaces between particles of matter. The average amount of empty space between molecules gets progressively larger as a sample of matter moves from the solid to the liquid and gas phases.

Key Terms

kinetic molecular theory: Theory of treating samples of matter as a large number of small particles (atoms or molecules), all of which are in constant, random motion

kinetic: Of or relating to motion.

lattice: A regular spacing or arrangement of atoms/molecules within a crystal.

phase: A component in a material system that is distinguished by chemical composition and/or physical state. Matter can exist in the solid, liquid, and gaseous phases.

The kinetic molecular theory of matter offers a description of the microscopic properties of atoms (or molecules) and their interactions, leading to observable macroscopic properties (such as pressure, volume, temperature). An application of the theory is that it helps to explain why matter exists in different phases (solid, liquid, and gas) and how matter can change from one phase to the next.

All particles have energy, but the energy varies depending on the temperature the sample of matter is in. This in turn determines whether the substance exists in the solid, liquid, or gaseous state. Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy.

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3 years ago
The volleyball team practiced their serves, rotations, and ________. Which choice completes the sentence with correct parallel s
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Answer

Correct Answer is a.(spikes)

Explanation:

option a is correct because here serves, rotation and spikes all the three words are using as object.

The volleyball team practiced their serves, rotations, and spikes.

option b cannot be correct because here spiking is used as a verb and sentence(The volleyball team practiced their serves, ) is in past indefinite form and we cant use word spiking here because this form of verb is used in continues form of sentences only.

Option c cannot be correct as because in this option ""spikes the ball" spikes is used as a verb  which can be used in present indefinite form of sentence only but here sentence is in past indefinite form.

Again option d cannot be correct because  in this option ""spikes over the net" spikes is used as a verb  which can be used in present indefinite form of sentence only but here sentence is in past indefinite form.

5 0
4 years ago
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PLANETARY MOTION: When the masses of two objects are doubled, which of the following would happen to the gravitational force bet
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Answer:

So as the mass of either object increases, the force of gravitational attraction between them also increases. If the mass of one of the objects is doubled, then the force of gravity between them is doubled.

Explanation:

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2 years ago
A 1.98 kg mass is set on a spring, and the spring compression an amount 4.78 cm. what is the spring constant?
Zielflug [23.3K]
Well, the spring constant is measured using the F=k∆x, where F is the force, k is the constant, and ∆x is the change in position.  So if the mass is 1.98, the force (mxg) is 19.4.  Thus the spring constant is 19.4/.0478(change in position). This equals 405.86.
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4 years ago
( WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST AND SHOWS WORK) A car weighs 15300 N. What is its mass?
mylen [45]

Answer:

Mass, m = 1561.23kg

Explanation:

Given the following data;

Weight = 15300N

We know that acceleration due to gravity is equal to 9.8m/s²

To find mass;

Weight can be defined as the force acting on a body or an object as a result of gravity.

Mathematically, the weight of an object is given by the formula;

Weight, W = mg

Where;

  • m represents the mass of an object measured in kilograms.
  • g is the acceleration due to gravity measured in meters per seconds square.

Substituting into the equation, we have;

15300 = m*9.8

m = \frac {15300}{9.8}

<em>Mass, m = 1561.23 Kg</em>

<em>Therefore, the mass of the car is 1561.23 kilograms.</em>

7 0
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