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3 years ago

Explain the role of convection currents In the formation of sea or land breazes

Physics

1 answer:

Mila [183]3 years ago

3 0

Answer:

Land and sea breezes are wind and weather phenomena associated. A land breeze is a breeze blowing from land out toward a body of water and a sea breeze is a wind blowing from water onto land. Land breezes and sea breezes arise because of differential heating between land and water surfaces. Land and sea breezes can extend inland. Land and sea breeze patterns can greatly influence fog distribution and pollution accumulation or dispersion over inland areas.

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Two electric charges A and B were placed facing each other at a distance of separation "r". The common electrostatic force betwe

lutik1710 [3]

Answer:

From the formula of force:

$F = \frac{kAB}{ {r}^{2} } \\$

since AB and k are constants:

$F \: \alpha \: \frac{1}{ {r}^{2} } \\ \\ F = \frac{x}{ {r}^{2} }$

x is a constant of proportionality

• when force is 4N, separation distance is 1

$4 = \frac{x}{1} \\ x = 4$

therefore, equation becomes

$F = \frac{4}{ {r}^{2} } \\$

when r is doubled, r becomes 2. find F:

$F = \frac{4}{ {2}^{2} } \\ \\ F = \frac{4}{4} \\ \\ { \underline{force \: is \: 1N}}$

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3 years ago

In our solar system, most asteroids are found _____.A.In the kuiper beltb.Orbiting close to the sunc.Between mars and jupiterd.B

nydimaria [60]

Between Mars and Jupiter

7 0

3 years ago

Read 2 more answers

Dish-shaped reflectors are used to steer microwaves in order to establish communications links between nearby buildings. Those r

Ad libitum [116K]

A "screen" or even just a set of parallel bars are highly reflective to electromagnetic waves as long as the open spaces are small compared to the wavelengths.

"Grid" dishes work fine ... with less weight and less wind resistance ... for frequencies below about 3 GHz. (Wavelengths of at least 10 cm.)

(I even worked on a microwave system in South America where huge grid dishes were used on a 90-mile link.)

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3 years ago

A ray diagram without the produced image is shown.

Goryan [66]

Answer:

B) inverted and real

Explanation:

6 0

3 years ago

A straight segment of wire 35.0 cm long carrying a current of 2.60 A is in a uniform magnetic field. The segment makes an angle

den301095 [7]

Answer:

Magnetic field, B = 0.275 T

Explanation:

Given that,

Length of the wire, L = 35 cm = 0.35 m

Current carried in the wire, I = 2.6 A

The segment makes an angle of 53∘ with the direction of the magnetic field, $\theta=53^{\circ}$

Magnetic force, F = 0.2 N

To find,

The magnitude of the magnetic field.

Solution,

The magnetic force acting on the wire is given by :

$F=ILBsin\theta$

$\theta$ is the angle between the length of wire and the magnetic field.

$0.2=2.6\times 0.35\times B\times sin(53)$

B = 0.275 T

Therefore, the magnitude of the magnetic field is 0.275 T. Hence, this is the required solution.

5 0

3 years ago