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3 years ago

Which is carried by waves?

Physics

2 answers:

Alex787 [66]3 years ago

5 0

Answer:

Waves carry energy from one place to another. Because waves carry energy, some waves are used for communication, eg radio and television waves and mobile telephone signals. Some types of waves need to be transmitted through matter, either a solid, liquid or a gas. For example, water waves have to travel in water.

Dahasolnce [82]3 years ago

3 0

Answer:

Energy

Explanation:

so u dont have to read all that :)

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A hollow cylindrical (inner radius = 1.0 mm, outer radius = 3.0 mm) conductor carries a current of 80 A parallel to its axis. Th

Pavlova-9 [17]

Answer:

The magnetic field is $B = 3 mT$

Explanation:

From the question we are told that

The inner radius is $r_i = 1.00 mm =1*10^{-3} \ m$

The outer radius is $r_2 = 3.00 \ mm = 3.0 *10^{-3} \ m$

The distance from the axis of the conductor is $d =2.0 \ mm = 2.0 *10^{-3} \ m$

The current carried by the conductor is $I = 80 A$

According to Ampere's circuital law , the magnetic field at a point that is $r_3$ from the axis of the conductor

$B = \frac{\mu_oI}{2 \pi d } [\frac{d - r_1}{r_2 -r_1} ]$

Where $\mu_o$ is the permeability of free space with a value of $\mu_o = 4 \pi *10^{-7} N/A^2$

substituting values

$B = \frac{(4 \pi *10^{-7})(80)}{2 * 3.142 * 2 *10^{=3} } [\frac{(2^2 - 1 ^2 )*10^{-3}}{(3^2 - 1^2) *10^{-3}} ]$

$B = 3 mT$

5 0

4 years ago

A wrench 0.500 m long is applied to a nut with a force of 80.0 N. Because of the cramped space, the force must be exerted upward

riadik2000 [5.3K]

Answer:

Torque, $\tau=34.6\ N.m$

Explanation:

It is given that,

Length of the wrench, l = 0.5 m

Force acting on the wrench, F = 80 N

The force is acting upward at an angle of 60.0° with respect to a line from the bolt through the end of the wrench. We need to find the torque is applied to the nut. We know that torque acting on an object is equal to the cross product of force and distance. It is given by :

$\tau=Fr\ sin\theta$

$\tau=80\times 0.5\ sin(60)$

$\tau=34.6\ N.m$

So, the torque is applied to the nut is 34.6 N.m. Hence, this is the required solution.

7 0

3 years ago

Which colour of light in a prism has the

Schach [20]

☁️ Answer ☁️

Violet

Explanation:

1. As the full spectrum of visible light travels through a prism, the wavelengths separate into the colors of the rainbow because each color is a different wavelength. Violet has the shortest wavelength, at around 380 nanometers, and red has the longest wavelength, at around 700 nanometers.

2. Isaac Newton's experiment in 1665 showed that a prism bends visible light andthat each color refracts at a slightly different angle depending on the wavelength of the color.

Here's the link if you want to know more:

https://science.nasa.gov/ems/09_visiblelight#:~:text=As%20the%20full%20spectrum%20of%20visible%20light%20travels,has%20the%20longest%20wavelength%2C%20at%20around%20700%20nanometers.

Hope it helps.

Have a nice day noona/hyung.

3 0

3 years ago

Read 2 more answers

What is the most important thing to remember when using a presentation aid during a speech?

Gala2k [10]

Answer:

Ensure each member of the audience can see and read the aid.

Explanation:

8 0

3 years ago

a toy train set has a resistance of 20 ohms and uses a current of 250mA. If it ran for one hour, what is the power of the train?

postnew [5]

Wmwiiejejejejejjeuwuwuwiwwvhwbwvsbe shshe

4 0

3 years ago