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Hatshy [7]
4 years ago
15

The ozone hole appears in antarctica during

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

Answer:

The ozone appears in Antarctica during the Arctic spring.

Explanation:

From September to early December, strong winds start to circulate around the Arctic and creates an atmospheric container.

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It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (For example, w
Charra [1.4K]

Answer:

b) q large and m small

Explanation:

q is large and m is small

We'll express it as :

q > m

As we know the formula:

F = Eq

And we also know that :

F = Bqv

F = \frac{mv^{2} }{r}

Bqv = \frac{mv^{2} }{r}

or Eq = \frac{mv^{2} }{r}

Assume that you want a velocity selector that will allow particles of velocity v⃗  to pass straight through without deflection while also providing the best possible velocity resolution. You set the electric and magnetic fields to select the velocity v⃗ . To obtain the best possible velocity resolution (the narrowest distribution of velocities of the transmitted particles) you would want to use particles with q large and m small.

6 0
4 years ago
Calculate the work done when: <br><br> The resultant force on a car is 22kN and it travels 2.0km.
RoseWind [281]
W=Fd
W=22,000N*(2,000m)
W=44,000,000J
6 0
3 years ago
Read 2 more answers
Compare the percent change in angular momentum of the system to the percent change in the rotational kinetic energy of the syste
Lapatulllka [165]

Answer:

change in the angular momentum gives a greater change in the kinetic energy since it has a quadratic dependence with the angular velocity

Explanation:

Let's write the definition of angular momentum

         L = I w

the kinetic energy is

         K = ½ I w²

         

         w = L / I

we substitute

       K = ½ I L² / I²

       K = L² / 2I

      K / L = w / 2

     

therefore a change in the angular momentum gives a greater change in the kinetic energy since it has a quadratic dependence with the angular velocity

8 0
3 years ago
As more energy from fossil fuels and other fuels is released on Earth, the overall temperature of Earth tends to rise. Discuss h
BlackZzzverrR [31]

Answer:

processes are competitive and reach a thermal equilibrium where the absorbed energy is equal to the energy emitted, this is the equilibrium temperature of the planet.

Explanation:

The temperature of planet Earth is due to two main types of process, internal and external.

Internal processes are all chemical processes that occur that release heat into the environment or due to gases that trap heat on the planet, greenhouse effect

External processes is heating due to energy coming from the Sun. This includes direct heating of the surface by the absorption of energy and reflects of energy in different atmospheric layers.

These are the two terms that heat the Earth

In addition there are several processes so the planet loses energy,

* energy radiation to outer space that is a few degrees kelvin, for which there is a permanent emission

* endothermic processes that need to absorb heat to perform, this lowers the temperature of the system

* liquid (water) system that absorbs large amounts of heat to change state and temperature.

These processes are competitive and reach a thermal equilibrium where the absorbed energy is equal to the energy emitted, this is the equilibrium temperature of the planet.

Therefore it is impossible for the temperature to increase indefinitely since the emission would increase by decreasing the value

5 0
3 years ago
A current of 6.93 A 6.93 A in a long, straight wire produces a magnetic field of 4.15 μT 4.15 μT at a certain distance from the
natka813 [3]

Answer:

0.334 m

Explanation:

The magnetic field due to current in a straight thin wire, B, is given by

B = \dfrac{\mu_0 I}{2\pi R}

where \mu_0 is the permeability of free spave with value 4\pi\times10^{-7} and R is the distance from the wire.

R = \dfrac{\mu_0 I}{2\pi B}

Substituting the values from the question,

R = \dfrac{4\pi\times10^{-7}\times 6.93}{2\pi\times 4.15\times 10^{-6}}

R = \dfrac{2\times10^{-1}\times6.93}{4.15} = 0.334 \text{ m}

7 0
4 years ago
Read 2 more answers
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