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4 years ago

Which of the following is a TRUE statement about the differences between electromagnetic and mechanical waves?

Physics

2 answers:

Butoxors [25]4 years ago

8 0

' D ' is the only correct statement on the list.

Electromagnetic waves are capable of traveling through

many substances, and they're also capable of traveling

through vacuum. Mechanical waves can't travel in vacuum.

sasho [114]4 years ago

3 0

The answer is D. Electromagnetic waves travel in a vacuum and mechanical waves do not travel in a vacuum.

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I’ve looked though the text book and looked it up but I dunno the answer

Feliz [49]

C. Surface.
Hope it helps!

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4 years ago

A long iron bar lies along the x-axis and has current of I = 16.4 A running through it in the +x-direction. The bar is in the pr

Gre4nikov [31]

Answer:

B = 8.0487mT

Explanation:

To solve the exercise it is necessary to take into account the considerations of the Magnetic Force described by Faraday,

The magnetic force is given by the formula

$F =BILsin\theta$

Where,

B = Magnetic Field

I = Current

L = Length

$\theta =$ Angle between the magnetic field and the velocity, for this case are perpendicular, then is 90 degrees

According to our data we have that

I = 16.4A

F = 0.132N/m

As we know our equation must be modificated to Force per length unit, that is

$\frac{F}{L} = BI sin(90)$

Replacing the values we have that

$0.132 = 16.4 (1) B$

Solving for B,

$B = \frac{0.132}{16.4}$

$B = 8.0487mT$

8 0

4 years ago

What makes a planet different from other celestial bodies?.

Serggg [28]

Answer:

It's more habitable.

Explanation:

The atmosphere, calculated to equations, are a lot more pulled down.

5 0

3 years ago

If you are given time and distance, you can determine power if you know force. watts. energy. joules.

DENIUS [597]

If you are given time and distance, you can determine power if you know force. watts. energy. joules.

Answer is joules.

Power is defined as the rate of doing work. Hence power = work / time then you obtain watts. Work is the product of force and displacement (distance). Hence in formula, w = F x s. In which the S.I unit of work is joule in the product. This is what you have to obtain in order to calculate for power.

4 0

3 years ago

Read 2 more answers

Which sentence is correct?

Alexeev081 [22]

Answer:

pretty sure its B if it isnt im so so sorry

Explanation:

7 0

3 years ago