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olasank [31]
3 years ago
10

What happens when a person’s immune system is very weak?

Physics
1 answer:
Alexeev081 [22]3 years ago
6 0
The correct answer is C) becuse without certain medicine they will dieeeee
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A fly travels along the x-axis. His starting point is x = 16 m and his ending point 15x = - 25 m. His flight lasts 4.0 seconds H
gogolik [260]

Explanation:

Starting position at x  = 16m

Ending position at x  = -25m

Time of flight  = 4s

Unknown:

Distance flown  = ?

Displacement  = ?

Speed  = ?

Velocity  = ?

Solution:

To find the distance flown, we should understand that the body is moving on the x - plane;  

  So distance  = 16 + 25  = 41m

Displacement is 41m to the left or -x axis

Speed is the distance divided by the time taken;

      Speed  = \frac{distance}{time}   = \frac{41}{4}   = 10.25m/s

Velocity is 10.25m/s along -x axis

5 0
2 years ago
An axe used to split wood is driven into a piece of wood for an input distance of 0.05m. If the mechanical
klasskru [66]
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8 0
3 years ago
Write one example of a physical change and one example chemical change
mojhsa [17]
Physical change = changes the physical properties (more commonly known as it's look)
Chemical change = changes the chemical properties into an entire new chemical form
Examples of physical change would be melting ice cubes or sugar cubes.
Examples of chemical change would be cooking eggs or burning paper because you're changing its chemical properties.
6 0
3 years ago
If Bert the Bat travels East at 200 meters in 10 seconds, what is his velocity?
dexar [7]

Answer:

20m/s due east

Explanation:

Given parameters:

Displacement eastward  = 200m

Time  = 10s

Unknown:

Velocity  = ?

Solution:

Velocity is the displacement divided by time;

    Velocity  = \frac{displacement}{time}  

 Velocity  = \frac{200}{10}    = 20m/s due east

4 0
3 years ago
The current supplied by a battery as a function of time is ) -(0.64 A)e-/(6.0 hr). What is the total number of electrons transpo
Paha777 [63]

Answer:

The total number of electrons is 8.6\times10^{22}

(3) is correct option.

Explanation:

Given that,

The current equation is

I=0.64 e^{\dfrac{-t}{6.0 hr}}

We know that,

The formula of charge

q=\int_{0}^{\infty}{I dt}

q=\int_{0}^{\infty}{0.64 e^{\dfrac{-t}{6.0 hr}}dt

q=0.64\int_{0}^{\infty}{e^{\dfrac{-t}{6.0 hr}}dt

q=0.64\int_{0}^{\infty}{e^{\dfrac{-t}{21600}}dt

q=0.64(21600e^{\dfrac{-t}{21600}})_{0}^{\infty}

q=0.64(0-21600)

q=0.64\times21600

q=13824\ C

We need to calculate the number of electron

Using formula of charge

q=ne

n=\dfrac{q}{e}

n=\dfrac{13824}{1.6\times10^{-19}}

n=8.6\times10^{22}

Hence, The total number of electrons is 8.6\times10^{22}

7 0
3 years ago
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