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Dovator [93]
2 years ago
6

What happens to the body’s immune system when attacked by HIV ?

Physics
1 answer:
labwork [276]2 years ago
4 0

Answer:

HIV attacks a specific type of immune system cell in the body. It's known as the CD4 helper cell or T cell. When HIV destroys this cell, it becomes harder for the body to fight off other infections.

Explanation:

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The net horizontal force on a car is 981 N. The car has a mass of 1550 kg and the force is applied when the car has a speed of 2
viktelen [127]

Answer:

Distance, d = 778.05 m                          

Explanation:

Given that,

Force acting on the car, F = 981 N

Mass of the car, m = 1550 kg

Initial speed of the car, v = 25 mi/h = 11.17 m/s

We need to find the distance covered by car if the force continues to be applied to the car. Firstly, lets find the acceleration of the car:

F=ma\\\\a=\dfrac{F}{m}\\\\a=\dfrac{981}{1550}\\\\a=0.632\ m/s^2

Let d is the distance covered by car. Using second equation of motion as :

d=ut+\dfrac{1}{2}at^2\\\\d=11.17\times 35+\dfrac{1}{2}\times 0.632\times (35)^2\\\\d=778.05\ m

So, the car will cover a distance of 778.05 meters.

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3 years ago
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Do swimming which make Newtons Third Law
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2 years ago
Which action describes an experimental investigation?
EastWind [94]
I think the answer is c
3 0
2 years ago
Identify the parts of the electromagnetic spectrum, both visible and invisible.
son4ous [18]
The visible<span> light </span>spectrum<span> is a fractional </span>part of the electromagnetic spectrum, which is visible<span> due to our eyes, which are light receptors. </span>Invisible spectrum<span> are things like UV </span>spectrum<span> which falls outside the human </span>visible<span> range.</span>
8 0
3 years ago
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You are holding a string tied to a lamp post 15 m away. You pull the string so that it has a tension of 1.5 N and a mass density
Dvinal [7]

Answer:

Explanation:

Given that

L= 15 m

T= 1.5 N

μ =0.0045 kg/m

f= 4 Hz

We know that

Velocity in string V is given as

V=\sqrt{\frac{T}{\mu}}

Now putting the values in the above equation we get

V=\sqrt{\frac{1.5}{0.0045}}=18.25\ m/s

We know that

V= f λ

\lambda =\frac{V}{f}

\lambda =\frac{18.25}{4}=4.5 m

6 0
3 years ago
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