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Tanzania [10]
3 years ago
7

Walking across a carpet is an example of charge being transferred by

Physics
2 answers:
bekas [8.4K]3 years ago
8 0

Walking across a carpet is an example of charge being transferred by friction. The answer is letter D. The carpet, which is at rest, will resist the motion cause by your walking. This resistive motion d the friction the carpet obtained from you and you from the carpet.

dusya [7]3 years ago
6 0

Answer : The correct answer is- D)  Friction.

There are three modes of charging, which are Conduction, induction, and friction.

The static electricity is produced due to the rubbing of one substance with another. This is called charing by friction.


Hence, the correct answer is friction as there is friction between carpet and the feet of person walking over it.

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Yuri [45]

At its peak height, the hotdog will have no vertical velocity, so that

{v_f}^2-{v_i}^2=2(-g)\Delta y\implies-\left(30\,\dfrac{\mathrm m}{\mathrm s}\right)^2=2\left(-9.8\,\dfrac{\mathrm m}{\mathrm s^2}\right)y_{\mathrm{max}}

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7 0
3 years ago
A vector is 0.888 m long and points in a 205 degree direction.
Dmitry_Shevchenko [17]

Answer:

-0.805 m

Explanation:

The x-component of a vector is given by:

v_x = v cos \theta

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v is the magnitude of the vector

\theta is the angle of the vector with respect to the positive x-direction

In this problem we have

v = 0.888 m

\theta=205^{\circ}

so we have

v_x = (0.888 m)(cos 205^{\circ})=-0.805 m

7 0
4 years ago
Which of the following is not true for atoms?
Rzqust [24]
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7 0
3 years ago
Read 2 more answers
The microwaves in a certain microwave oven have a wavelength of 12.2 cm. How wide must this oven be so that it will contain five
leva [86]

Answer:

a

 l = 0.305 \  m

b

  f = 3.0*10^{11} \  Hz

Explanation:

From the question we are told that

  The  wavelength is  \lambda  =  12.2 \  cm  = 0.122 \  m

  The  number of antinodal planes of the electric field considered is n  =  5

The  width is mathematically represented as

       l  =  \frac{ n \lambda}{2}

       l = \frac{5 * 0.122 }{ 2}

      l = 0.305 \  m

Generally the  frequency the errors was made is  mathematically represented as

   f =  \frac{c}{\lamda_k}

Here c is the speed of light with value  c =  3.0*10^{8} \  m/s

     \lambda_k is the wavelength of the microwave has to be in order for there still to be five antinodal planes of the electric field along the width of the oven, which is mathematically represented as

     \lambda_k  =  \frac{ \lambda *  \frac{0.04}{2} }{n/2}

      \lambda_k  =  \frac{0.122*0.02}{5/2}

So

   f =  \frac{3.0*10^{8}}{0.000976}

    f = 3.0*10^{11} \  Hz

   

       

8 0
3 years ago
What is measurement ?
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Answer:

Measurement is the value of the size or extent of something or someone.

Explanation:

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