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3 years ago

Im sorry i dont understand pls helpp -w-

2 answers:

7 0

Temperature is related to a physical change of a substance because it determines the state of the object via cooling, heating or freezing. To make the concept clear, hear are some examples:-
1. Chocolate melts and turns into liquid form. This is a physical change
2. Water freezes via cooling and forms ice which is in a solid state. This is another physical change

Hope this helped and have a nice day : )

Savatey [412]3 years ago

3 0

Explanation:

it's about kinetic energy

with more heat particles in a substance get energy

with more cold atoms or molecules lose energy

both change the way particles are arranged

the way particles are arranged make something a has liquid or substance

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The cars on an amusement-park ride travel at a constant velocity of 4.0 m/s on a circular track

lys-0071 [83]

V^2=u^2+2as
V=0
a =-u^2/2s
a=[4]^2/2[4]
a=-2m/s^2

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3 years ago

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B. Intractable epilepsy patients

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3 years ago

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Can someone please explain the quantum theory in simple terms

BaLLatris [955]

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3 years ago

Juan was wearing a bright red shirt in a very dark room. What color did his shirt appear to the people with him in the room? A)

ikadub [295]

It would appear black.

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3 years ago

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You are approaching a police car at 68. 1 mph and the police car is approaching you at 94. 8 mph. Assume that the speed of sound

Veronika [31]

We will hear the sound of siren of frequency 1553.4606 Hz.

<h3>What is Doppler Effect?</h3>

The apparent change in wave frequency brought on by the movement of a wave source is known as the Doppler effect. When the wave source is coming closer and when it is moving away, the perceived frequency changes. The Doppler effect explains why we hear a passing siren's sound changing in pitch.

according to Dopplers Effect,

$f'=[\frac{v + v_{0} }{v - v_{s} } ]f$

$f'= [\frac{700+68.1}{700-94.8} ]* 1224$

$f'= 1553.4606 Hz$

the frequency would be 1553.4606 Hz.

to learn more about Doppler Effect go to - brainly.com/question/9165991

#SPJ4

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2 years ago