3 years ago

What do scientists use to explain an atom or the universe?

Physics

1 answer:

slega [8]3 years ago

7 0

Scientists use theories to explain these things

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ss7ja [257]

Answer: ME= E total - E thermal

5 0

2 years ago

A car is traveling around a horizontal circular track with radius r = 220 m at a constant speed v = 16 m/s as shown. The angle θ

iogann1982 [59]

Velocity = distance / time = ( 2 * pi * r ) / t = 20.583 m/s

<span>x component = sine ( 32 ° ) * 20.583 = 10.91 m/s

hope this helps :)

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5 0

3 years ago

Assume (unrealistically) that a TV station acts as a point source broadcasting isotropically at 3.2 MW. What is the intensity of

Dahasolnce [82]

Answer:

$I=1.5\times10^{-28}W/m^2$

Explanation:

The intensity is related to the power and surface area by $I=\frac{P}{A}=\frac{P}{4\pi r^2}$ . We need to calculate the surface area of a sphere of radius r=4.3ly.

Since 4.3ly is the distance light travels in 4.3 years at 299792458m/s, we can obtain it in meters by doing:

$r=vt=(299792458m/s)(4.3\times365\times24\times60\times60s)=4.1\times10^{16}m$

So we have:

$I=\frac{P}{4\pi r^2}=\frac{3.2\times10^6W}{4\pi (4.1\times10^{16}m)^2}=1.5\times10^{-28}W/m^2$

4 0

3 years ago

:)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))

FromTheMoon [43]

Good morning dear...

Have a beautiful and joyful day ahead.

6 0

2 years ago

Force has _____. magnitude direction gravity weight

Contact [7]

Answer:

magnitude

Explanation:

7 0

4 years ago

Read 2 more answers