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ivanzaharov [21]
3 years ago
5

I need help!!!!!!!

Physics
1 answer:
wlad13 [49]3 years ago
4 0
One simple use of the elements of the electromagnetic spectrum that we use during our everyday lives is our daily use of microwave radiation. microwave radiation is absorbed by water molecules which heats up and cooks the food whilst killing bacteria. Another would be ultraviolet radiation which we use daily in things such as light bulbs. The sun also uses this. Lastly, we use radio waves constantly. May it be tv programs, radio, or our cell phones.
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A uniform electric field of magnitude 4.6 ✕ 104 N/C is perpendicular to a square sheet with sides 3.0 m long. What is the electr
rodikova [14]

Answer:

41.4* 10^4 N.m^2/C

Explanation:

given:

E= 4.6 * 10^4 N/C

electric field is 4.6 * 10^4 N/C and square sheet is perpendicular to electric field so, area of vector is parallel to electric field

then electric flux = ∫ E*n dA

                            = ∫ 4.6 * 10^4 * 3*3

                            = 41.4* 10^4 N.m^2/C

3 0
3 years ago
Read 2 more answers
What is the primary outgoing radiation put off by the sun?
ira [324]

I really don’t know but I think it’s D

7 0
3 years ago
Can you explain why number 3 is correct?
lukranit [14]
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2 years ago
A train whose proper length is 1200 m passes at a high speed through a station whose platform measures 900 m, and the station ma
TiliK225 [7]

Answer:

0.66c

Explanation:

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where L is the contracted length,

L₀ is the length at 0 velocity,

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and c is the speed of light.

900 = 1200 √(1 − (v²/c²))

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9/16 = 1 − (v²/c²)

v²/c² = 7/16

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3 years ago
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