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Sav [38]
3 years ago
14

How does a decrease in thermal energy affect the particle motion in each state of matter

Physics
1 answer:
Valentin [98]3 years ago
3 0
The thermal energy is proportional to the movement of the particles in every state.

Decreasing the thermal energy will decrease the movement.
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A railroad train is traveling at a speed of 26.0 m/s in still air. The frequency of the note emitted by the locomotive whistle i
olga55 [171]

Answer: 0.757m; 0.881m; 432.70Hz; 371.89Hz

Explanation:

Give the following :

Velocity of train (Vt) = 26m/s

Frequency of sound (Fs) = 420Hz

Speed of sound (Vs) = 344m/s

1) wavelength = (Vs - Vt) / Fs

Wavelength = (344 - 26) / 420 = 318/420 = 0.757m

11) Wavelength = (Vs + Vt) / Fs

Wavelength = (344 + 26) / 420 = 370/420 = 0.881m

111) According to the doppler effect :

Fl = [(V + Vl) / (V + Vs)] * fs

Fl = frequency of listener ; fs = frequency of sound source ; V = speed of sound ; Vl = Velocity of listener ; Vs = speed of sound source

Vs = - ve (train moving towards listener)

Fl = [(V + Vl) / (V + Vs)] * fs

Fl = [(344 + 0) / (344 - 26)] * 400

Fl = (344 / 318) * 400 = 432.70Hz

1V) Vs = + ve (train moving away listener)

Fl = [(V + Vl) / (V + Vs)] * fs

Fl = [(344 + 0) / (344 + 26)] * 400

Fl = (344 / 370) * 400 = 371.89Hz

6 0
3 years ago
Someone please help! It is a few science questions. Fairly easy!
borishaifa [10]
1) 0.92 * 100 = 92 <Solve using the formula which is:
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3 0
3 years ago
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Answer:

Option B

Explanation:

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3 years ago
Newton's first law of motion is the law of inertia
saw5 [17]

Answer:

this statement is true because I looked it up

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Lou’s pet parrot looks as through it has many more features on cold days than it appears to have on warm ones. Loy determines th
Alexus [3.1K]

it has many more features on cold days than it appears to have on warm ones; thats the independant variable i believe

8 0
3 years ago
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