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spayn [35]
3 years ago
14

A student is standing at a distance of 45 m from a wall. He gives a loud clap at the echo is heard 0.3a later. Calculate the spe

ed of sound.
Physics
1 answer:
kodGreya [7K]3 years ago
5 0

Answer:

300 m/s

Explanation:

2d = vt

v = 2d/t

v = 2×90/.3

v=300 m/s

d = distance

t = time

v = velocity/speed of sound

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A mixture in which the parts can be seen separately from the other parts is considered to be what type of mixture
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What would make oppositely charged objects attract each other more?
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Answer:

A. increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object

Explanation:

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A sound wave from a police siren has an intensity of 100.0 W/m² at a certain point; a second sound wave from a nearby ambulance
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The sound level of the sound wave due to the ambulance is 140.

<h3>What do you mean by sound?</h3>

In terms of physics, the sound is a vibration that travels through a transmission medium like a gas, liquid, or solid as an acoustic wave. Sound is the reception of these waves and the brain's perception of them in terms of human physiology and psychology. Only acoustic waves with frequencies between roughly 20 Hz and 20 kHz, or the audio frequency range, can cause a human to have an auditory sensation. These are sound waves with wavelengths ranging from 17 meters (56 ft) to 1.7 millimeters in the air at atmospheric pressure (0.67 in). Ultrasounds are sound waves with a frequency higher than 20 kHz that are inaudible to humans. Infrasound refers to sound frequencies below 20 Hz. Animals of different species have different hearing ranges.

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3 0
2 years ago
Can someone please answer this, ill give you brainliest and your getting 100 points.
Nastasia [14]

Explanation:

Science says that youngest rock can be found in between ocean .

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Option C is correct

8 0
2 years ago
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A ball is thrown vertically upward with an initial velocity
ivolga24 [154]

Answer:

D

Explanation:

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V0=29.4

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29.4^2=19.6X

X=29.4^2/19.6=44.1

5 0
2 years ago
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