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Alex
3 years ago
11

PLEASE HELP!!! FIRST IS BRAINLIEST!!!

Physics
2 answers:
OlgaM077 [116]3 years ago
7 0

The material or substance that a wave moves through is called a medium. The medium affects the speed of the wave that passes through it. One factor that affects the speed of a wave is the type of medium. Some waves move faster in solids and some waves move faster in liquids and gases. Another factor that affects wave speed is the temperature of the medium. 

Verizon [17]3 years ago
6 0
1. A Medium

2.  One of these 4, the refractive index of the medium  <span>Choose whichever are on the test.

3. </span>properties and nature of medium, Hope this helps.
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5. Each of five satellites makes a circular orbit about an object that is much more massive than any of the satellites. The mass
Vikentia [17]

The options of the question are missing. I have attached it.

Answer:

Satellite in option B will have the greatest speed.

Explanation:

From kepplers third law, we know that

V² = GM/R

Thus, v = √(GM/R)

Where;

v is velocity

G is gravitational constant

M is mass

R is radius

Looking at the options, let's start from the first one;

Option A

Here, mass = (1/2)m and radius = R

So, v = √(GM/R) thus v = √(G(m/2)/R) = √(Gm/2R)

Option B

Here, mass = m and radius = (1/2)R

Thus v = √(Gm/(R/2)) = √(2Gm/R)

Option C

Here, mass = m and radius = R

Thus v = √(Gm/R)

Option D

Here, mass = m and radius = 2R

Thus v = √(Gm/(2R))

Now, inspecting all the options, it's clear that option B will have the greatest velocity because it's numerator is the biggest and will in turn lead to higher velocity.

4 0
3 years ago
________________________involves connecting a voltmeter set to read DC volts to the suspected high-resistance cable ends and cra
AnnyKZ [126]

Answer:

Voltage Drop Testing

Explanation:

The motives behind conducting Voltage Drop Testing is to recognize or identify the presence of unwanted resistance in the wire. or any other electrical appliance.  The appliance used to calculate the voltage drop is digital volt ohmmeters.  

voltage drop is the amount of loss of voltage due to resistance when electric current flow through the circuit. Thus measuring the voltage drop in respect to the amount of current flow, resistance can be measured.

4 0
3 years ago
Need help with getting the answer!
wlad13 [49]

Answer:

D. Salt Weathering

Explanation:

Salt weathering is defined as a geomorphic process resulting in the physical disintegration of rocks or stones and  in the fretting of their surfaces. Often you tend to find the best examples of salt weathering in dessert  areas and coastal areas. You can find three distinct types of weathering which are biological weathering,  physical weathering, and chemical weathering.

8 0
2 years ago
The fundamental resolution of a lens or telescope is determined by:
Sliva [168]

Answer:

The numerical aperture of the lens.

Explanation:

A numerical aperture is a dimensionless number that is the range of angles that the system can accept / emit light.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

4 0
2 years ago
Scientists in a test lab are testing the hardness of a surface before constructing a building. Calculations indicate that the en
antiseptic1488 [7]
1st find the slope of the line:
(11-5)/(8.2-2.3) = 6/5.9 = 1.01

Find the equation of the line:

y - 5 = 1.01(x - 2.3)
y - 5 = 1.01x - 2.323
y = 1.01x + 2.667

Now set x to 20
y = 1.01(20) + 2.667
y = 20.2 + 2.667
y = 22.867 floors ~ 23 floors
8 0
3 years ago
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