All categories

3 years ago

What is the difference between a mechanical wave and an electromagnetic wave

Physics

1 answer:

ivann1987 [24]3 years ago

5 0

Answer:

1. Electromagnetic waves travel in a vacuum whereas mechanical waves do not.

2. The ripples made in a pool of water after a stone is thrown in the middle are an example of mechanical wave. Examples of electromagnetic waves include light and radio signals.

3. Mechanical waves are caused by wave amplitude and not by frequency. Electromagnetic Waves are produced by vibration of the charged particles.

4. While an electromagnetic wave is called just a disturbance, a mechanical wave is considered a periodic disturbance.

Explanation:

You might be interested in

Electron can only lose energy by transition from one allowed orbit to another ______ electromagnetic radiation

ozzi

Explanation:

Please solve this question as soon as possible. I need help with a solution

5 0

3 years ago

Let's examine over the next few questions an NFL kick as described in the 3rd Law video. The announcer claimed that the ball is

hichkok12 [17]

Answer:

8451.62109367671 Newtons

Explanation:

$1\ kg=1\times 9.8066500286389=9.8066500286389\ N$

$1 \lb=2.2046226218488\ kg$

It is known that

$1\ lbs=\dfrac{9.8066500286389}{2.2046226218488}=4.4482216282508\ N$

So,

$1900\ lbs=1900\times 4.4482216282508\\\Rightarrow 1900\ lbs=8451.6210936765\ N$

The force in Newtons is 8451.6210936765 Newtons

4 0

4 years ago

Lolllllll m bhvjghhhhnmkklopjicfxg vbjnkmkjhgvfcgvjhbkjnlhbgvfc

OverLord2011 [107]

Answer:

oh no

Explanation:

5 0

3 years ago

Read 2 more answers

Complex matching suggests that individuals who have formed a relationship may differ predominantly in the area of __________.

jek_recluse [69]

Answer:

physical attractiveness

Explanation:

7 0

3 years ago

What is the upper block's acceleration if the coefficient of kinetic friction between the block and the table is 0.16?

Gekata [30.6K]

(Missing figure is here: https://www.physicsforums.com/attachments/ch05-p070-jpg.149243/ )

Let's call $m_1 = 1.0 kg$ and $m_2=2.0 kg$ the masses of the two blocks. We can write Newton's second law for both blocks (sum of all forces acting on the block = ma). On block 1, we have two forces: the weight $m_1 g$ pointing downwards and the tension of the string T poiting upwards. On block 2, we have the tension of the string going right and the friction $\mu m_2 g$ going left. Therefore

$m_1 g - T = m_1 a$
$T-\mu m_2 g = m_2 a$

Summing the two equations, we find
$m_1 g - \mu m_2 g = (m_1 + m_2) a$
and then using $\mu=0.16$ we can find the acceleration:
$a= \frac{m_1 g - \mu m_2 g}{m_1 + m_2}=2.22 m/s^2$

6 0

3 years ago