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77julia77 [94]
3 years ago
10

For years, marine scientist were mystified by sound waves detected by underwater microphones in the Pacific Ocean. These so-call

ed T waves were among the purest sounds in nature. Eventually the researchers traced the source to underwater volcanoes whose rising columns of bubbles resonated like organ pipes. A typical T wave has a frequency of 6.8 Hz. Knowing that the speed of sound in seawaver is 1,530 m/s, determine the wavelength of a T wave.
Physics
1 answer:
pychu [463]3 years ago
7 0

Answer:

225 m

Explanation:

f = Frequency of the T wave = 6.8 Hz

v = Speed of sound in seawater = 1530 ms⁻¹

\lambda = Wavelength of the T wave

we know that, frequency, speed and wavelength are related as

wavelength = \frac{speed}{frequency}

\lambda = \frac{v}{f}

Inserting the values, we get

\lambda = \frac{1530}{6.8}\\\lambda = 225 m

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beks73 [17]

Answer:

1. The current will drop to half of its original value.

Explanation:

The problem can be solved by using Ohm's law:

V=RI

where

V is the voltage across the circuit

R is the resistance of the circuit

I is the current

We can rewrite it as

I=\frac{V}{R}

In this problem, we have:

- the resistance of the circuit remains the same: R' = R

- the voltage is decreased to half of its original value: V'=\frac{V}{2}

So, the new current will be

I'=\frac{V'}{R'}=\frac{V/2}{R}=\frac{1}{2}\frac{V}{R}=\frac{I}{2}

so, the current will drop to half of its original value.

4 0
3 years ago
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Ahat [919]

Answer:

Collisions are basically two types: Elastic, and inelastic collision. Elastic collision is defined as the colliding objects return quickly without undergoing any heat generation. Inelastic collision is defined as the where heat is generated, and colliding objects are distorted.

In elastic collision, the total kinetic energy, momentum are conserved, and there is no wasting of energy occurs. Swinging balls is the good example of elastic collision. In inelastic collision, the energy is not conserved it changes from one form to another for example thermal energy or sound energy. Automobile collision is good example, of inelastic collision.

5 0
3 years ago
The joule and the kilowatt-hour are both units of energy. 15 kw · h is equivalent to how many joules? answer in units of j.
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The solution for the problem is:

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a Kilowatt is 1,000 Watts 
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15 W*h = 15,000 Watt*hour = 15,000 Watt * 3,600 seconds = 54,000,000 Watt*second 

54,000,000 Watt*second = ? Joules 
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3 0
3 years ago
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Trava [24]

Answer:

• They depend solely on the load that generates it

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3 0
3 years ago
Is it accurate to say that galaxies take up most of the volume of space? Why or why not?
RUDIKE [14]

Answer:

ntergalactic space takes up most of the volume of the universe, but even galaxies and star systems consist almost entirely of empty space.

Explanation:

so to be exact galixes do make up most of the volume of space because galaxies are what make up space!

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