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3 years ago

PLZ HELP

Physics

1 answer:

marissa [1.9K]3 years ago

7 0

We just keep meeting huh? I believe the wave to be longitudinal, because the energy is going left to right.

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Free points....... please follow me

enot [183]

Answer:

Please mark as Brainliest....

Explanation:

I have followed you dear Always ready to help others

6 0

3 years ago

Read 2 more answers

If scientists could bore though Earth's interior, what change would they most likely notice as they passed from the lithosphere

CaHeK987 [17]

Answer:

It gets hotter and hotter and it would start to be a liquid lava

Explanation:

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2 years ago

A solid cube of aluminum (density of 2.7 g/cm³) has a volume of 0.9 cm³. how many atoms are contained in the cube?

Reika [66]

Answer:

$0.542*10^{23}\ Aluminum\ Atoms$

Explanation:

$We\ are\ given:\\Density\ of\ aluminum=2.7\ g/cm^3\\Volume\ of\ aluminum-cube=0.9\ cm^3\\Hence,\\As\ we\ know\ that,\\Density=\frac{Mass}{Volume}\\Mass=Density*Volume\\Hence,\ here,\\Mass\ of\ the\ solid\ iron\ cube=2.7*0.9=2.43\ g\\Now,\\We\ also\ know\ that,\\Gram\ Atomic\ mass\ of\ Aluminum = 26.98 \approx 27\ g\\Hence,\\No.\ of\ particles=\frac{Mass}{GAM}*Avagadro's Constant\\Hence,\ here\\No.\ of\ Aluminum\ atoms=\frac{2.43}{27}*6.022*10^{23} \approx 0.542*10^{23}\ Aluminum\ Atoms$

8 0

3 years ago

Narrow belts of high-speed winds that blow in the upper troposphere and lower stratosphere are known as

Drupady [299]

<h2>Jet Stream</h2>

Explanation:

Jet streams are the winds that flow in the upper levels of the atmosphere.
These are relatively narrow bands of strong wind.
These high-speed winds blow from west to east in jet streams.
Sometimes, the flow of wind shifts from north to south.
Jet streams follow the boundaries between hot and cold air.

3 0

2 years ago

Aluminum has a coefficient of linear expansion of 2.4x10^-5 C^-1 and a coefficient of volume expansion of 7.2x10^-5 C^-1. An alu

Alla [95]

Answer:

New length = 10.2 m

Explanation:

Let ΔL = change in length

ΔT = change in the temperature

L(0) = intial length

α = coeffient of linear expansion

Then

ΔL = αL(0)ΔT

=(2.4×10^-5)(10)(100-20)

=0.0192 m

New length = L(0) + ΔL

= 10 + 0.0192

= 10.2 m

6 0

3 years ago