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kondaur [170]
3 years ago
7

All waves transmit?

Physics
1 answer:
PtichkaEL [24]3 years ago
3 0

Answer:

The transmission of energy is one thing that is carried out by all kinds of waves. They transmit energy from one point, known as the source, to another point.

For instance, in electromagnetic waves, energy is transmitted as a result of vibrations between the magnetic field and electric field. In mechanical waves, energy is transmitted when the particles in the medium heat up and vibrate. Energy travels through particles in a medium.

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A power transmission line is hung from metal towers with glass insulators having a resistance of 1.00×109 Ω . What current flows
Hunter-Best [27]

Answer:

The current flows through the insulator is 2 mA.

Explanation:

Given that,

Resistance R=1.00\times10^{9}\ \Omega

Voltage = 200 kV

We need to calculate the current

Using ohm's law

V=IR

I=\dfrac{V}{R}

Where, I = current

V = voltage

R = resistance

Put the value into the formula

I=\dfrac{200\times10^{3}}{1.00\times10^{9}}

I=0.0002\ A

I=2\ mA

Hence, The current flows through the insulator is 2 mA.

5 0
4 years ago
A particle of mass 2.37 kg is subject to a force that is always pointed towards East or West but whose magnitude changes sinusoi
Pavlova-9 [17]

Answer:

v(1.5)=0.7648\ m/s

Explanation:

<u>Dynamics</u>

When a particle of mass m is subject to a net force F, it moves at an acceleration given by

\displaystyle a=\frac{F}{m}

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The variable acceleration is calculated by:

\displaystyle a=\frac{F}{m}=\frac{2cos1.1t}{2.37}

a=0.8439cos1.1t

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\displaystyle v(t)=\int_{t_o}^{t_1}a.dt

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\displaystyle v(1.5)=0.7672sin1.1t \left |_0^{1.5}

\displaystyle v(1.5)=0.7672(sin1.1\cdot 1.5-sin1.1\cdot 0)

\boxed{v(1.5)=0.7648\ m/s}

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