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frutty [35]
3 years ago
5

Please need help with this one

Physics
2 answers:
Lerok [7]3 years ago
6 0
Light waves travel through different speeds through different media? Hope this helps ❤️
Greeley [361]3 years ago
6 0
The first one is your answer
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How long would it take you to travel 163 meters at a speed of 33 meters per second?
Leviafan [203]

Speed=

33m {s}^{ -1}

Distance=

163m

speed= distance/time

So,

<u>Time</u><u>=</u><u> </u><u>distance</u><u>/</u><u>speed</u>

Time= 163/33

<h2>=</h2>

\huge\underline\mathtt\colorbox{cyan}{4.9393s}

7 0
3 years ago
We use __force to do different force. 1) pulling 2)pushing 3)gravity 4)muscular
soldier1979 [14.2K]

Answer:

gravity

Explanation:

We use gravity to do different force.

3 0
3 years ago
Alarge plate is fabricated from a steel alloy that has a plane strain fracture toughness of 82.4 MPa m1/2. If the plate is expos
Korvikt [17]

Answer:

minimum length of a surface crack is 18.3 mm

Explanation:

Given data

plane strain fracture toughness K = 82.4 MPa m1/2

stress σ = 345 MPa

Y = 1

to find out

the minimum length of a surface crack

solution

we will calculate length by this formula

length = 1/π ( K / σ Y)²

put all value

length = 1/π ( K / σ Y)²

length = 1/π ( 82.4 10^{3/2} / 345× 1)²

length = 18.3 mm

minimum length of a surface crack is 18.3 mm

4 0
3 years ago
How can i better study to better prepare for exams
ira [324]
Organize your study space. ...
Use flow charts and diagrams. ...
Practice on old exams. ...
Explain your answers to others. ...
Organize study groups with friends. ...
Take regular breaks. ...
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Plan your exam day.
Just plain study..
6 0
3 years ago
Read 2 more answers
A sound technician is testing the sound acoustics in a theatre for an upcoming music concert. As he moves towards the speakers,
Harlamova29_29 [7]

Answer: Increase in wave frequency

Explanation:

When we talk about acoustics we are dealing with sound waves, and one of their main components along with the velocity and wavelength is the <u>frequency.</u>

In this sense, the frequency of any wave refers to how fast (or slow) a wave oscillates. For example, in the especific case of sound waves when the oscillation is faster, the frequency is higher and the pitch gets higher as well.

6 0
3 years ago
Read 2 more answers
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