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d1i1m1o1n [39]
3 years ago
14

Pam rubs a balloon on her head to generate a static charge. She holds the balloon up against a wall. Which of the following desc

ribes the electric charges and forces at work if the balloon sticks to the wall?
Electrons move from Pam’s hair to the balloon and attract electrons in the wall.

Electrons move from Pam’s hair to the balloon and attract protons in the wall.

Protons move from Pam’s hair to the balloon and attract protons in the wall.

Protons in the balloon form chemical bonds with protons in the wall.
Physics
1 answer:
cestrela7 [59]3 years ago
6 0

Answer:

c

Explanation:

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Answer:

0

Explanation:

The overall charge on this atom is 0.

  To find the charge on an atom;

           charge  = number of protons - number of electrons.

Note:

  • Protons are the positively charged particles in an atom
  • Electrons are the negatively charged particles in an atom
  • Neutrons carries no charges on them.

Since the atom is made up of equal number of protons and electrons, the charge on it is 0.

If the number of electrons is more, the atom will be negatively charge but if the number of protons is more, it will be positively charged.

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Two bowling balls each have a mass of 6.8 kg. They are located next to each other with their centers 21.8 cm apart. What gravita
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Answer:

6.49 x 10^-8 N

Explanation:

formula is

F= G * ((m1 * m2)/r^2)

F = 6.67x10^-11 * ((6.8*6.8/.218)

F = 6.49 x 10^-8 Newtons

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An electric field of magnitude 2.35 V/m is oriented at an angle of 25.0° with respect to the positive z-direction. Determine the
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Answer:

The magnitude of the electric flux is 3.53\ N-m^2/C

Explanation:

Given that,

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Angle = 25.0°

Area A= 1.65 m^2

We need to calculate the flux

Using formula of the magnetic flux

\phi=E\cdot A

\phi = EA\cos\theta

Where,

A = area

E = electric field

Put the value into the formula

\phi=2.35\times1.65\times\cos 25^{\circ}

\phi=2.35\times1.65\times0.91

\phi=3.53\ N-m^2/C

Hence, The magnitude of the electric flux is 3.53\ N-m^2/C

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Easier to write, easier to read, easier to understand, easier to compare
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  2. Don't overstretch right in the beginning as it can cause sore in your muscles and joints or stress fractures.
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