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tankabanditka [31]
3 years ago
11

What does light means​

Physics
2 answers:
Talja [164]3 years ago
7 0

Answer:

Light is a source of illumination, whether a natural one (like the sun) or an artificial one (like your lamp). Like light itself, the word can take a lot of different forms — it can be a noun, an adjective, or a verb, and it can mean "bright" or "not heavy".

Explanation:

Leokris [45]3 years ago
3 0

Answer:

the natural agent that stimulates sight and makes things visible

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A soccer ball is kicked from the ground with an initial speed of 20.1 m/s at an upward angle of 47.8˚. A player 53.0 m away in t
e-lub [12.9K]

Answer:3.95 m/s

Explanation:

Given

Initial velocity(u)=20.1 m/s

launch angle=47.8^{\circ}

Player is 53 m away

Range of projectile

R=\frac{u^2sin2\theta }{g}

R=\frac{20.1^2\times sin95.6}{9.8}

R=41.02 m

so he need to run 53-41.02=11.98 m

Time of flight of projectile =\frac{2usin\theta }{g}

T=3.03 s

thus average speed of boy s_{avg}=\frac{11.98}{3.03}=3.95 m/s

5 0
3 years ago
Why do we measure volume
Misha Larkins [42]

Explanation:

Volume is often quantified numerically using the SI derived unit, the cubic metre. The volume of a container is generally understood to be the capacity of the container; i. e., the amount of fluid (gas or liquid) that the container could hold, rather than the amount of space the container itself displaces.

We don't use units like triangular prism feet or spherical kilometers because the three axes don't make a "corner" of any other shape other than a cube.

Glad I was able to help!!

7 0
3 years ago
Read 2 more answers
You drive a race car around a circular track of radius 300 m at a constant spe 108 km/h. Your acceleration will be: A) 39.9 m/s
morpeh [17]

Answer:

C

Explanation:

Centripetal acceleration is:

a = v² / r

First, convert km/h to m/s:

108 km/h × (1000 m / km) × (1 h / 3600 s) = 30 m/s

Therefore, the acceleration is:

a = (30 m/s)² / 300 m

a = 3 m/s²

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4 years ago
Eating disorders during puberty explains
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3 years ago
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Anna [14]
Pitch is the sensation of certain frequencies to the ear. High frequency = high pitch, low frequency = low pitch. 

f = c(speed of the wave) /  <span>λ (wavelength)

1. 343m/s / 0.77955m = 439.99 Hz   
     This corresponds to pitch A 

2. 343m/s / 0.52028m = 659.26 Hz
</span>     This corresponds to pitch E 
<span>
3. 343m/s / 0.65552m = 523.349 Hz
    </span>This corresponds to pitch C

4. using f = c /  λ
  λ = c / f<span>
     = 343m/s / 587.33 = 0.583999 m = 0.584 m

</span>
3 0
3 years ago
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