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3 years ago

PLEASE PLEASE HELP!! Do ultraviolet light or microwaves have a higher frequency?

1 answer:

8 0

Answer:The different types of radiation are defined by the the amount of energy found in the photons. Radio waves have photons with low energies, microwave photons have a little more energy than radio waves, infrared photons have still more, then visible, ultraviolet, X-rays, and, the most energetic of all, gamma-rays.

Explanation:

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A long, thin straight wire with linear charge density ? runs down the center of a thin, hollow metal cylinder of radius R. The c

MaRussiya [10]

Answer:

a. E = $\frac{\lambda }{(2\epsilon * r) }$

b. $E = \frac{3(lambda)}{2\pi*\epsilon(outside) }$

Explanation:

The important thing to remember is to use Gauss Law. This is a relation that describes the distribution of electric charge to the resultant electric field.

Linear charge density means charge per unit length of material.

Data:

The metal cylinder is hollow.

The unit length is L.

a.The expression will be as follows:

for charge inside the cylinder, where r < R, the expression is:

E = $\frac{\lambda }{(2\epsilon * r) }$

b. Let's assume that the cylinder is a coaxial cylinder with a radius r > R, then the electrical field strength is given as:

$E = \frac{Q ( enclosed)}{A*\epsilon }$

E = $\frac{\lambda*L+2(\lambda)*L }{(A)*\epsilon(outside) }$

E = $\frac{3(\lambda)L }{(2\pi*R*L*\epsilon(outside) }$

This gives:

$E = \frac{3(lambda)}{2\pi*\epsilon(outside) }$

The solution informs us that there is a surface change taking place on the cylinder. Therefore, there will not be a magnetic field across it.

3 0

4 years ago

Mr. Stephenson drives his car from Dallas to Town X, a distance of 437 km. The trip takes 7.27 hours. What is the average speed

alexandr1967 [171]

Answer: S<span>peed = 60.11 miles per hour
</span>

To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.

<span>speed = distance/time</span>

3 0

3 years ago

Read 2 more answers

Which is larger, the Sun's pull on Earth or Earth's pull on the Sun?

Juliette [100K]

B it’s the most logical answer

3 0

4 years ago

Two metal spheres of identical mass m = 4.20 g are suspended by light strings 0.500 m in length. The left-hand sphere carries a

Yanka [14]

Answer:

Explanation:

Answer:

0.632 m

Explanation:

let the equilibrium separation between the charges is d and the angle made by string with the vertical is θ.

According to the diagram,

d = L Sinθ + L Sinθ = 2 L Sinθ .....(1)

Let T be the tension in the string.

Resolve the components of T.

T Sinθ = k q1 q2 / d^2

T Sinθ = k q1 q2 / (2LSinθ)² .....(2)

T Cosθ = mg .....(3)

Dividing equation (2) by equation (3), we get

tanθ = k q1 q2 / (4 L² Sin²θ x mg)

tan θ Sin²θ = k q1 q2 / (4 L² m g)

For small value of θ, tan θ = Sin θ

So,

Sin³θ = k q1 q2 / (4 L² m g)

Sin³θ = (9 x 10^9 x 0.785 x 10^-6 x 1.47 x 10^-6) / (4 x 0.5 x 0.5 x 4.20 x 10^-3 x 9.8)

Sin³θ = 0.2523

Sinθ = 0.632

θ = 39.2 degree

So, the separation between the two charges, d = 2 x L x Sin θ

d = 2 x 0.5 x 0.632 = 0.632 m

6 0

3 years ago

The current definition of the standard kilogram of mass is based onA) the mass of the earth.B) the mass of the sun.C) the mass a

Neko [114]

The kilogram SI unit is based off an original prototype that is kept in France. The prototype itself is based off the mass of water under special conditions for temperature as well as pressure.

6 0

4 years ago