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Mashutka [201]
3 years ago
15

Describe one major infectious in History. Give details.

Physics
2 answers:
777dan777 [17]3 years ago
5 0
El sarampión: más de 200 millones 
El sarampión se caracteriza por causar marcas rojizas en la piel, altas fiebres y malestar general. Además, es también el causante de la segunda mayor pandemia de la historia. La muerte se produce por inflamación pulmonar o de las meninges. Actualmente la mayoría de la población está vacunada contra este mal, ya que entra dentro de la vacuna 'triple viral'. Se contagia mediante contacto directo y por el aire. 
  
<span>Se tienen registros de este virus desde hace más de 3.000 años y, hasta el momento, ha matado a más de 200 millones de personas
</span>
mezya [45]3 years ago
4 0
El sarampión: más de 200 millones 
<span>El sarampión se caracteriza por causar marcas rojizas en la piel, altas fiebres y malestar general. Además, es también el causante de la segunda mayor pandemia de la historia. La muerte se produce por inflamación pulmonar o de las meninges. Actualmente la mayoría de la población está vacunada contra este mal, ya que entra dentro de la vacuna 'triple viral'. Se contagia mediante contacto directo y por el aire. </span>
<span>  </span>
<span>Se tienen registros de este virus desde hace más de 3.000 años y, hasta el momento, ha matado a más de 200 millones de personas

</span>
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The next four questions refer to the situation below.
Anna11 [10]

Answer:

 t_{out} = \frac{v_s - v_r}{v_s+v_r} t_{in},      t_{out} = \frac{D}{v_s +v_r}

Explanation:

This in a relative velocity exercise in one dimension,

let's start with the swimmer going downstream

its speed is

         v_{sg 1} = v_{sr} + v_{rg}

The subscripts are s for the swimmer, r for the river and g for the Earth

with the velocity constant we can use the relations of uniform motion

           v_{sg1} = D / t_{out}

           D = v_{sg1}  t_{out}

now let's analyze when the swimmer turns around and returns to the starting point

        v_{sg 2} =  v_{sr}  - v_{rg}

         v_{sg 2} = D / t_{in}

         D = v_{sg 2}  t_{in}

with the distance is the same we can equalize

           v_{sg1} t_{out} = v_{sg2} t_{in}

          t_{out} =  t_{in}

           t_{out} = \frac{v_s - v_r}{v_s+v_r} t_{in}

This must be the answer since the return time is known. If you want to delete this time

            t_{in}= D / v_{sg2}

we substitute

            t_{out} = \frac{v_s - v_r}{v_s+v_r} ()

            t_{out} = \frac{D}{v_s +v_r}

7 0
2 years ago
Calculate the charge that flows through the cell in 1 minute. Each filament lamp has a power of 3 W and a resistance of 12 Ω
lapo4ka [179]

Answer:

24 Coulumbs

Explanation:

Given data

time= 1 minute= 6 seconds

P=2 W

R= 12 ohm

We know that

P= I^2R

P/R= I^2

2/12= I^2

I^2= 0.166

I= √0.166

I= 0.4 amps

We know also that

Q= It

substitute

Q= 0.4*60

Q= 24 Columbs

Hence the charge is 24 Coulumbs

5 0
3 years ago
A football punter accelerates a .55 kg football
Ronch [10]

Answer:

17.6 N

Explanation:

The force exerted by the punter on the football is equal to the rate of change of momentum of the football:

F=\frac{\Delta p}{\Delta t}

where

\Delta p is the change in momentum of the football

\Delta t=0.25 s is the time elapsed

The change in momentum can be written as

\Delta p = m(v-u)

where

m = 0.55 kg is the mass of the football

u = 0 is the initial  velocity (the ball starts from rest)

v = 8.0 m/s is the final velocity

Combining the two equations and substituting the values, we  find the force exerted on the ball:

F=\frac{m(v-u)}{\Delta t}=\frac{(0.55)(8.0-0)}{0.25}=17.6 N

5 0
3 years ago
Describe the octet rule in terms of noble-gas configurations and potential energy
Wittaler [7]
Elements will gain or lose electrons to form a noble gas configuration. Atoms that meet the octet rule are stable because their valence electrons have a relatively low potential energy. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.


8 0
3 years ago
Read 2 more answers
Type O negative blood is considered the universal red blood cell donor because it _____.
marissa [1.9K]

Answer:

Honestly i think the answer is B

Explanation:

4 0
3 years ago
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