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Answer:

The speed of sound in air is lower compared to in solids and liquids.

Explanation:

Sound is a wave that can be generated by a vibrating body. Its speed through different media differs due to the nature of the media.

Since the molecules of solids are closely packed, sound can be easily transferred from one molecule to another at a faster rate. Thus, the high speed of sound in solids.

In liquids, the molecules are not as closely packed as solids. So that  the speed of sound though liquids is lower compared to that of solids. Gases has its molecules farther apart, thus making the speed of sound through it the lowest compared to solids and liquids.

Therefore the sound of the batter hitting the ball is heard latter, due to its lower speed through the air.

Answer:

2.22m/s^2

Explanation:

Answer:

It is 32.9

Explanation:

Answer:

   v₀₂ = -2.67 m / s

Explanation:

Let's use the conservation of the moment, for this we define a system formed by the two cars.

Consider the north direction as positive and the subscript 1 will be used for car 1 and the subscript 2 for the second car

Initial instant. Before the crash

          p₀ = -m₁ v₀₁ + m₂ v₀₂

Final moment. Right after the crash

          p_f = (m₁ + m₂) v

           p₀ = p_f

           -m₁ [tex]v_{o1}[/tex] + m₂ v_{o2} = (m₁ + m2) v_{f}

         v₀₂ = [tex]\frac{(m_1 +m_2) v }{m_2}[/tex]+  [tex]\frac{m_1 v_{o1} }{m_{1} }[/tex]

let's calculate

          v₀₂ = [tex]\frac{(1800 +2800) 5.22 + 1800 (-17.5)}{2800}[/tex]

          v₀₂ = -2.67 m / s

the negative sign indicates that the carriage moves in the opposite direction of the temperies

Answer:

have free electrons

Explanation:

they are loosely bound and free to move through the material

Answer:

4b: comets

5a: supercluster

5b: they just changed 4b's solar system for milky way. I think it is still comets. if not, then just say black holes.

Answer:

245 ml

Explanation:

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The original volume of the sample of hydrogen is 250 mL. The correct option is the fourth option 250mL

From the question,

We are to determine the original volume of the hydrogen.

To do this,

We will use the Boyle's law formula

Boyle's law states that "the volume of a fixed mass of gas is inversely proportional to its pressure, provided that the temperature remains constant."

From Boyle's law we have that

P₁V₁ = P₂V₂

Where P₁ is the initial pressure

V₁ in the initial volume

P₂ is the final pressure

and V₂ is the final volume

From the question,

P₁ = 1.5 atm

P₂ = 0.50 atm

V₂ = 750 mL

Put the above parameters into the Boyle's law equation

P₁V₁ = P₂V₂

Then, we get

1.5 × V₁ = 0.50 × 750

1.5 × V₁ = 375

∴ V₁ = 375 ÷ 1.5

V₁ = 250 mL

Hence, the original volume of the sample of hydrogen is 250 mL. The correct option is the fourth option 250mL

Learn more here: https://brainly.com/question/12717895

Answer:

Resistance 2.

Explanation:

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

[tex] V = IR[/tex]

Where;

Note: Voltage is the same as potential difference.

Given the following data;

Resistance 1  = 10 Ohms

Current 1 = 3 Amperes

Potential difference 1 = current * resistance

Potential difference 1 = 3 * 10

Potential difference 1 = 30 V

To find the potential difference in 2;

Resistance 2 = 5 Ohms

Current 2 = 10 Amperes

Potential difference 2 = 10 * 5

Potential difference 2 = 50 V

Therefore, Resistance 2 has greater potential difference.

Answer:

ummm stream txt blue hour

Explanation:

Answer:b

Explanation: this would be the closet answer

Answer:

greater than 365.2 days.

Explanation:

Answer:

241,274.32 inches

Explanation:

How far will he travel if the rear wheel makes 1200 revolutions on the road?

Since the rear wheel makes one revolution in the distance of a circumference of a circle, C with diameter, d = 16 inches

C = πd²/4

So, the distance, travelled in 1200 revolutions is D = 1200 × C = 1200πd²/4

Substituting d = 16 into D, we have

D = 1200πd²/4

D = 1200π(16)²/4

D = 76800π

D = 241,274.32 inches

Answer:

SI

Explanation:

Answer:

35%

Explanation:

Answer:

its 83

Explanation:

Answer:

vitamins don't contain calories

Answer:

c gl

Explanation:

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Answer:

I will post your answer soon

Explanation:

If you are planning an investigation that explores the properties of matter, then experiment: place a powder into a beaker that contains a liquid Result : the beaker gets hotter will help you discover a physical property.

An experiment is a technique used to confirm or deny a hypothesis, as well as assess the possibility or effectiveness of something that has never been done before. Experiments show what happens when a certain component is modified, which sheds light on cause-and-effect relationships. The purpose and scope of experiments vary widely, but they always rely on a repeatable process and a rational examination of the outcomes. Natural experimental experiments are also a thing.

While a child may conduct simple experiments to better understand how objects fall to the ground, scientific teams may spend years conducting thorough research to increase their understanding of a phenomenon.

This experiment shows enthalpy is positive, heat is absorbed in this experiment. this breaks the atoms and it needed the energy.

To know more about heat :

https://brainly.com/question/1429452

#SPJ2.

Answer:

Water vapor

Explanation:

Water Vapor has the highest temperature, due to its being in a gas state, and gases usually have very high temperatures, for example steam when you boil pasta.

Hope this helps you! Have a nice day!

Answer:

C: 20.0s

Explanation:

Answer:

220 seconds

Explanation:

Answer:

I'm going to go out on a limb and say D. All of the above

Explanation:

Answer:

Explanation:

orange jump suit n a fat belly

Answer:

Potential energy

u welcome lol

Answer:

  2 m/s

Explanation:

The crest of the wave moves 8 meters in 4 seconds, so its speed is ...

  (8 m)/(4 s) = 2 m/s

Answer:

2 m/s is the answer .

Explanation:

Answer:11

Explanation:

Just did it

Answer: it’s 11

Explanation:

I just did the question

Answer:Divergent boundaries -- where new crust is generated as the plates pull away from each other.

Convergent boundaries -- where crust is destroyed as one plate dives under another.

Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each other.

Explanation:

Answer:

Earth's rotation and orbit and the Moon's orbit cause observable patterns (Day and night, seasons, phases of the Moon, tides).

Answer:

A force that tries to slow things down that are moving through air. It is a type of friction. Air resistance and water resistance are both sometimes called drag.