3 years ago

Disease, pathogen , host and infectious in a sentence

1 answer:

3 0

Answer: Most fevers caused by infection end as soon as the immune system rids the body of the pathogen, and these fevers do not produce lasting effects.

Explanation:

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A man has been guarding a house for one hour . Why is it not considered work in science

leva [86]

Answer: because there is no displacement or movement in the watchman's work. according to science when displacement or movement take place it is said to be work. hope this helps you.

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3 years ago

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

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2 years ago

A magnet has ___________ poles. Like poles__________each other and unlike poles __________. An electromagnet is used to separate

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Answer:

2 repel attracts light water

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3 years ago

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If the amplitude of the resultant wave is twice as great as the amplitude of either component wave, and the wave exhibits reinfo

Lunna [17]

Be in phase with each other! otherWise B

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3 years ago

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Is it possible for an object at rest to have forces acting upon it? Explain

daser333 [38]

Answer:

Yeah

Explanation:

I mean, how about gravity for example! When you draw a free-body diagram, you will almost always have to include gravity. How about normal force, or static friction? There are defintely forces at hand.

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3 years ago