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ruslelena [56]
4 years ago
13

What is the phase difference between the oscillation of the electric field and the oscillation of the magnetic field?

Physics
1 answer:
love history [14]4 years ago
5 0

Answer: Zero

Explanation:

In electromagnetic wave, the magnetic and electric field are perpendicular to each other as well as perpendicular to the propagation wave. Both are always in a phase.

When the electric field is minimum, the magnetic field is also minimum and when the magnetic field is maximum, the electric field is also maximum. They are both in the same phase. Therefore, the phase difference between the oscillation of the electric field and that of the magnetic field is zero.

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4 years ago
A 15 kg block is on a ramp which is inclined at 20o above the horizontal. It is connected by a string to a 19 kg mass which hang
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Answer:

The magnitude of the acceleration of the 19 kg block is 1.414 m/s²

Explanation:

From Newton's second law of motion;

F_{Net} = ma

where;

m is the mass of the objects involved, kg

a is the acceleration of the object, m/s²

different forces on the block and string

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=mgcosθ = 15×9.8×cos20 = 15×9.8×0.9396

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T = mg = 19×9.8 = 186.2 N

F_{Net} = T-mg = a(m_1+m_2)

186.2 - 138.12 = a(15+19)

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a = 48.08/34

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Therefore, the magnitude of the acceleration of the 19 kg block is 1.414 m/s²

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4 years ago
Elements in a period have _____________.
ahrayia [7]

Answer:

Elements in a period have wide range of chemical properties.

Explanation:

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