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sergey [27]
3 years ago
11

Which statement correctly distinguishes between all mechanical and all electromagnetic waves?

Physics
2 answers:
Sunny_sXe [5.5K]3 years ago
7 0

Answer:

B

Explanation:

Mechanical waves carry energy through matter; electromagnetic waves carry energy through space.

lutik1710 [3]3 years ago
3 0

Answer: Mechanical waves carry energy through a medium; electromagnetic waves carry energy through media and space.

Explanation:

<u>The waves which require medium to travel are known as mechanical waves. </u>The waves carry energy forward by compression and rarefaction that is by changing density /pressure of medium particles.

<u>Electromagnetic waves can transfer energy through space as well as medium. </u>In an electromagnetic wave, electric field generates magnetic field and magnetic field generates electric field. Electric field and magnetic field are perpendicular to each other and to the direction of motion.

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What potential difference is required to cause 4.00 a to flow through a resistance of 330 ω?
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One mol of a perfect, monatomic gas expands reversibly and isothermally at 300 K from a pressure of 10 atm to a pressure of 2 at
Zolol [24]

Answer:

Explanation:

Given

1 mole of perfect, monoatomic gas

initial Temperature(T_i)=300 K

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P_f=2 atm

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P_i=initial pressure

P_f=Final Pressure

W=10\times 2.463\times ln\frac{10}{2}=39.64 J

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(b)if the gas expands by the same amount again isotherm-ally and irreversibly

work done is=P\Delta V

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\Delta q=\Delta W=9.852 J

\Delta U=0

8 0
3 years ago
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