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bearhunter [10]

2 years ago

9

If an ocean wave has a wavelength of 2 m and a frequency of 1 wave/s, then its speed is m/s Enter the answer Check it CRATCHPAD

Improve this questic 트

1 answer:

lozanna [386]2 years ago

6 0

Answer:

2m/s

Explanation:

v=f×wavelength

v=2×1

=2m/s

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The filament is broken in a light bulb. The circuit is now

Zina [86]

Answer:

It is A. Open Circuit.

Explanation:

Filament heats up and produces the light. If the filament breaks, the current does not flow and the circuit will be open. The ammeter will reach zero when this happens.

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2 years ago

Although the evidence is weak, there has been a concern in recent years over possible health effects from the magnetic fields ge

sergey [27]

Answer:

a

The magnetic field strength is $B = 2 \mu T$

Explanation:

From the question we are told that

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The current of the line is $I = 200A$

The voltage of the line is $V = 110kV$

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$B = \frac{\mu_o I}{2 \pi R}$

Where $\mu_0$ is the permeability of free space $= 4\pi * 10^{-7} N/A^2$

$B = \frac{(4\pi * 10^{-7} N/A^2) *200}{2 \pi *20}$

$= (2.0*10^{-7})[\frac{200}{20} ]$

$= 2*10^{-6}T$

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Earths magnetic field is approximately given as $50 \mu T$

So the percentage would be

$= \frac{Magnetic \ Field \ Intensity \ Of \ Line}{Earth's \ Magnetic \ Field} * 100$

$= \frac{2 \mu T }{50 \mu T } * 100$

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2 years ago

A young woman was found dead on the side of the road. Two witnesses said they saw and red cadillac hit her and drive off earlier

nignag [31]

I think the answer would be A. Density because many headlights could have the same density, but the rest of the analysis techniques would be specific to that crime.

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3 years ago

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Number 3

If you notice any mistake in my english, please let me know, because i am not native.

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2 years ago

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Fofino [41]

Gravity on the surface of sun is given as

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2 years ago