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Tcecarenko [31]
3 years ago
7

The thymus gland plays an important role in the developing immune system of a child. It makes infection-fighting lymphocytes cal

led
.
Physics
1 answer:
dedylja [7]3 years ago
6 0

Answer:

give brainliest please

Explanation:

T- lymphocytes or T cells

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A train travelling at 50km/h approaches another train moving towards the first at 90km/h. If they are 35km apart (on a straight
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it will take 36 seconds


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2 years ago
What are the primary colors?
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Explanation:

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3 years ago
The motion of a particle is described by the position function s(t) = 2t - 15t +33t+17,t>0 , where is measured in seconds and
8090 [49]

The time when the particle is at rest is at 1.63 s or 3.36 s.

The velocity is positive at when the time of motion is at 0.

The total distance traveled in the first 10 seconds is 847 m.

<h3>When is a particle at rest?</h3>
  • A particle is at rest when the initial velocity of the particle is zero.

The time when the particle is at rest is calculated as follows;

s(t) = 2t³ - 15t² + 33t + 17

v = \frac{ds}{dt} = 6t^2 -30t + 33\\\\at \ rest, \ v = 0\\\\6t^2 - 30t + 33 = 0\\\\6(t- \frac{5}{2} )^2- \frac{9}{2} = 0\\\\t = 1.63\ s \ \ or \ 3.36 \ s

The velocity is positive at when the time of motion is as follows;

0.

The total distance traveled in the first 10 seconds is calculated as follows;

2(10)^3 - 15(10)^2 + 33(10) + 17 = 847 \ m

Learn more about motion of particles here: brainly.com/question/11066673

4 0
2 years ago
What will occur when the trough of wave A overlaps the trough of wave B?
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Constructive interference will occur, which means the waves will combine.

In destructive inference, the waves cancel each other out.

Hope this helps :)

3 0
3 years ago
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