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enot [183]
4 years ago
8

What considerations are important in a well planned system for handling emergency situations

Physics
1 answer:
kykrilka [37]4 years ago
4 0

have a well thought out plan to begin with

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Which best describes a parallel circuit?
yarga [219]

c more than 1 pwy..................

8 0
4 years ago
A source injects an electron of speed v = 2.9 × 107 m/s into a uniform magnetic field of magnitude B = 1.7 × 10-3 T. The velocit
34kurt

Answer:

r = 0.664 m.

Explanation:

Let's write the equation of the magnetic force, the blacks syndicate vectors

       F = q v x B

From this expression we see that the force is perpendicular to the velocity and the field, so it is a centripetal force, the modulus of the force is

      F = q v B sinT

We write Newton's second law

      F = m a

      a = v² / r

     q v B sinT = m v² / r

     r = m v / (q B sinT)

Let's calculate

     r = 9.1 10-31 2.9 107 / (1.6 10-19 1.7 10-3 sin8.4)

     r = 26.4 10-24 / 0.3973 10-22

     r = 0.664 m

This is the distance from where the electron penetrates

7 0
4 years ago
Fill in the blank. When the northern hemisphere experiences autumn, the southern hemisphere experiences __________.
Helga [31]

Answer:

When the northern hemisphere experiences autumn, the southern hemisphere experiences <u><em>spring</em></u>

Explanation:

When the northern hemisphere experiences autumn, the southern hemisphere experiences <u><em>spring</em></u>

This is due to the equinoxes.  An equinox is an event that occurs twice a year. During these seasons all areas of the Earth's surface experience an equal amount of daylight and darkness. The sun is on the equator line, so the day and night in both hemispheres have the same duration. At that time the part of the Earth closest to the Sun is the equator.

The shape of the Earth means that while the spring equinox is experienced in the northern hemisphere, the autumn equinox is entered in the southern hemisphere.

8 0
4 years ago
Read 2 more answers
A thin soap bubble of index of refraction 1.33 is viewed with light of wavelength 550.0nm and appears very bright. Predict a pos
faust18 [17]

Answer:

The possible thickness of the soap bubble = 1.034\times 10^{-7}\ m.

Explanation:

<u>Given:</u>

  • Refractive index of the soap bubble, \mu=1.33.
  • Wavelength of the light taken, \lambda = 550.0\ nm = 550.0\times 10^{-9}\ m.

Let the thickness of the soap bubble be t.

It is given that the soap bubble appears very bright, it means, there is a constructive interference takes place.

For the constructive interference of light through a thin film ( soap bubble), the condition of constructive interference is given as:

2\mu t=\left ( m+\dfrac 12 \right )\lambda.

where m is the order of constructive interference.

Since the soap bubble is appearing very bright, the order should be 0, as 0^{th} order interference has maximum intensity.

Thus,

2\mu t=\left (0+\dfrac 12\right )\lambda\\t=\dfrac{\lambda}{4\mu}\\\ \ = \dfrac{550\times 10^{-9}}{4\times 1.33}\\\ \ = 1.034\times 10^{-7}\ m.

It is the possible thickness of the soap bubble.

6 0
3 years ago
Two charged particles are a distance of 1.72 m from each other. One of the particles has a charge of 7.03 nC, and the other has
MaRussiya [10]

A. The magnitude (in N) of the electric force that one particle exerts on the other is 8.60×10⁻⁸ N

B. The force is repulsive

<h3>A. How to determine the magnitude of the electric force</h3>

From the question given above, the following data were obtained:

  • Charge 1 (q₁) = 7.03 nC = 7.03×10¯⁹ C
  • Charge 2 (q₂) = 4.02 nC = 4.02×10¯⁹ C
  • Electric constant (K) = 9×10⁹ Nm²/C²
  • Distance apart (r) = 1.72 m
  • Force (F) =?

The magnitude of the electric force can be obtained by using the Coulomb's law equation as shown below:

F = Kq₁q₂ / r²

F = (9×10⁹ × 7.03×10¯⁹ × 4.02×10¯⁹) / (1.72)²

F = 8.60×10⁻⁸ N

<h3>B. How to determine whether the force is attractive or repulsive</h3>

From the question given, we were told that:

  • Charge 1 (q₁) = 7.03 nC
  • Charge 2 (q₂) = 4.02 nC

Since both charge are positive, then the force attraction between them is repulsive as like charges repels and unlike charges attracts

Learn more about Coulomb's law:

brainly.com/question/506926

#SPJ1

4 0
2 years ago
Read 2 more answers
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