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MissTica
3 years ago
6

Only the component of force perpendicular to the direction motion does work. true or false

Physics
1 answer:
const2013 [10]3 years ago
4 0
No.  Only the component of force parallel
to the direction of motion does work.

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An electron, tial well may be anywhere within the interval 2a. So the uncertainty in its position is Δx= 2a. There must be a co
lapo4ka [179]

Answer:

      K =  \frac{h'}{8 m  \ \Delta x^2}K

Explanation:

The Heisenberg uncertainty principle is

          Δx Δp ≥ h' / 2

          h’ =\frac{h}{2\pi }

The kinetic energy of a particle is

          K = ½ m v²

           p = mv

           v = \frac{p}{m}

substitute

           K = \frac{1}{2}  \frac{p^2}{m}

from the uncertainty principle,

           Δp = \frac{h'}{2 \ \Delta x}

we substitute

          K = \frac{1}{2m} ( \frac{h'}{2 \ \Delta x})^2

          K =  \frac{h'}{8 m  \ \Delta x^2}

4 0
3 years ago
A chart showing the type of reproduction that occurs in several organisms is shown below. Organism Type of Reproduction Bacteria
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Answer:

C

Explanation:

7 0
3 years ago
Read 2 more answers
If a sinusoidal electromagnetic wave with intensity 18 W/m2 has an electric field of amplitude E, then a 36 W/m2 wave of the sam
Neporo4naja [7]

Answer:

The  correct option is D

Explanation:

From the question we are told that

  The intensity of the first  electromagnetic wave is  I =  18 \  W/m^2

  The amplitude of the electric field is  E_{max}_1 =A

   The intensity of the second electromagnetic wave is  I =  36 \  W/m^2

Generally the an electromagnetic wave intensity is mathematically represented as

       I  =  \frac{1}{2} *  \epsilon_o  * c  * E_{max}^2

Looking at this equation we see that

     I \ \ \alpha  \ \ E^2_{max}

=>  \frac{I_1}{I_2}  =  [ \frac{ E_{max}_1}{ E_{max}_2} ] ^2

=>   E_{max}_2 = \sqrt{\frac{x}{y} }  *  E_{max}_1

=>  E_{max}_2 = \sqrt{\frac{36}{18} }  * E        

=>  E_{max}_2 = \sqrt{2 }  E        

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3 years ago
Only using 10 ohm resistors come up with a way to make a battery catch fire
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They catch fire with the ohm with the light from the gas with the heat and gas from radiation elects from the chemicals mixed
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Describe sound as a wave.​
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