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Serjik [45]
2 years ago
7

Which explanation best describes a wave?

Physics
1 answer:
Gekata [30.6K]2 years ago
5 0

Answer:

C. a disturbance that travels through a medium with a transfer of energy and without a transfer of matter

Explanation:

A wave is any disturbance that transfers energy from one location to the other via a substance called medium. It is important to note that a wave only conveys energy and not matter. For example, sound wave is a type of wave that carries sound energy from one place to another via mediums such as water, air etc.

Hence, according to this question, a wave can be described as a disturbance that travels through a medium with a transfer of energy and WITHOUT A TRANSFER OF MATTER.

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What special day is when Massachusetts receives the most indirect rays of the sun?
viva [34]

In December solstice Massachusetts receives the most indirect rays of the sun. It happened on the day of 21st of December.

<u>Explanation</u>:

Winter solstice festivities bring "stillness, light, and warmth" into this period of the occasion hustle. Keeping that in mind, we give you this gathering of mysterious occasions to stamp the day of the year (this year, Friday, December 21) with the briefest time of sunlight and the longest night of year. Also, obviously, to respect the arrival of the sun and the more extended days to come.

6 0
3 years ago
You must give a signal either by hand and arm or by a signal device: Only if other traffic is affected by your movement Only at
Vesnalui [34]
Hello there!

Anytime you change lanes.


Hope this helps :)
5 0
3 years ago
A child sits on the edge of a spinning merry-go-round that has a radius of 1.2 m. The child's speed is 5 m/s. What is the child'
Leya [2.2K]

Answer:

20.8 m/s^2

Explanation:

The centripetal acceleration of the child, which is moving by uniform circular motion, is given by

a=\frac{v^2}{r}

where

v = 5 m/s is the tangential speed of the child

r = 1.2 m is the radius of the circular path

Substituting the numbers into the equation, we find

a=\frac{(5 m/s)^2}{1.2 m}=20.8 m/s^2

3 0
3 years ago
he block is released, and it slides 2.0 m (from the point at which it is released) across a horizontal surface before friction s
alex41 [277]

Answer:

0.245

Explanation:

When the block is released, the initial elastic potential energy stored in the spring is entirely converted into kinetic energy of the block.

Therefore, we can calculate the initial speed of the block:

\frac{1}{2}kx^2 = \frac{1}{2}mv^2

where the term on the left is the potential energy and where the term on the right is the kinetic energy, and where

k = 4500 N/m is the spring constant

x = 8.0 cm = 0.08 m is the compression of the spring

m = 3.0 kg is the mass of the block

v is the initial velocity

Solving for v,

v=\sqrt{\frac{kx^2}{m}}=\sqrt{\frac{(4500)(0.08)^2}{3.0}}=3.1 m/s

Then, after the block is released, all its kinetic energy is converted into thermal energy as the block slows down, due to friction. Therefore, the work done by friction is equal to the initial kinetic energy of the block.

The force of friction is

F=\mu mg

where

\mu is the coefficient of friction

g=9.8 m/s^2 is the acceleration of gravity

So the work done by it is (in magnitude)

W=Fd=\mu mg d

where

d = 2.0 m is the distance covered

Therefore,

\frac{1}{2}mv^2 = \mu mg d

And solving for \mu,

\mu = \frac{v^2}{2gd}=\frac{3.1^2}{2(9.8)(2.0)}=0.245

8 0
3 years ago
How has access to the source code of proprietary software?
Amiraneli [1.4K]
Proprietary software is the software that is owned by an individual or the company that developed it.
<span><span>Source code is the basic component of a computer program and it </span>is the only component where a programmer can read and modify a computer program.</span>
<span>The source code for proprietary <span>software is closed. Only the programmers who have made the software have access to the source code. </span></span>
6 0
3 years ago
Read 2 more answers
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