4 years ago

One form of energy changes to multiple other forms

Physics

1 answer:

lorasvet [3.4K]4 years ago

3 0

<em><u>it is multiple transformation </u></em>

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brilliants [131]

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3 years ago

If you place 48 cm object 15 m in front of a convex mirror of focal length 5 m, what is the magnification of the image?

Arisa [49]

Answer:

m = 0.25

Explanation:

Given that,

Object distance, u = -15cm

Height of the object, h = 48

Focal length, f = cm

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Let v is the image distance. Using mirror's equation.

$\dfrac{1}{v}+\dfrac{1}{u}=\dfrac{1}{f}\\\\\dfrac{1}{v}=\dfrac{1}{f}-\dfrac{1}{u}\\\\=\dfrac{1}{5}-\dfrac{1}{(-15)}\\\\=3.75\ cm$

Magnification,

$m=\dfrac{-v}{u}\\\\=\dfrac{-3.75}{-15}\\\\=0.25$

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3 years ago

Which units are used to measure both velocity and speed? Select three options.

xz_007 [3.2K]

M/s, km/h, and mph are all used to measure these quantities

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3 years ago

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These graphs show measurements of the density of air as different sound waves pass a single point.

Ymorist [56]

Answer: D!

It is the option with the greatest amplitude.

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3 years ago

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4. A car accelerates, from rest, at 2.4 m/s?. How fast is the car traveling

pantera1 [17]

Answer:

19.2m/s

Explanation:

Assuming that 2.4m/s^2 was the acceleration and not a typo, we can use the equation v=at, where v=velocity, a=acceleration, and t=time,

plug in known varibles,

v=2.4*8

v=19.2m/s

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3 years ago