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Umnica [9.8K]
4 years ago
7

Scientists studying bull sperm whales off the coast of South Africa have calculated that these mammals can descend to depths of

nearly 3,000 m during their search for food. What is this depth in kilometers?
Physics
2 answers:
Llana [10]4 years ago
8 0
1 kilometer is 1000 meters so the answer would be 3 kilometers
Zarrin [17]4 years ago
3 0

Answer:

3,00,000

Explanation:

because 1 m =100m so, 3000x100=300000

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furniture mover or  a bank teller most likely to cause an acute strain

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3 years ago
The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. What is the freq
nata0808 [166]

Answer:

f=1.98\times 10^5\ Hz

Explanation:

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by :

B=1.2\times 10^{-6}\sin [2\pi (\dfrac{z}{240}-\dfrac{10^7t}{8})] .....(1)

The general equation of the magnetic field wave is given by :

B=B_o\sin (kz-\omega t) ....(2)

Equation (1) is in form of equation (2), if we compare equation (1) and (2) we find that,

\omega=\dfrac{10^7}{8}

We need to find the frequency of the wave. It is given by :

f=\dfrac{\omega}{2\pi}\\\\f=\dfrac{10^7}{8\times 2\pi}\\\\f=1.98\times 10^5\ Hz

So, the frequency of the wave is 1.98\times 10^5\ Hz

7 0
3 years ago
An 8.00-g sample of aluminum reacts with oxygen to form 15.20 g of aluminum oxide. how many grams of oxygen are used in the reac
konstantin123 [22]
I would say the the answer is 7.20 because if subtract the 8.00 grams from the 15.20 g you would get 7.20. Am I correct, please ley me know
7 0
3 years ago
If you observe an impaired driver, a safe behavior for you would be ____________.
timama [110]
Get someone else to drive me
6 0
3 years ago
The picture below shows the position of Earth and two stars.
alexgriva [62]

The answer is:

18 years.

The explanation:

when Star 1 is 34 light years from Earth and Star 2 is 52 light years from Earth. that means the distance between star 1 and star 2 is 52-34 = 18 years so, If Star 2 explodes as a supernova so,  the explosion would take 18 years to be seen from a planet orbiting Star 1.


8 0
3 years ago
Read 2 more answers
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