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nata0808 [166]
2 years ago
10

The use of sound waves helps scientists find out how deep parts of the ocean are. The scientists do this by sending a sound wave

to the floor of the ocean and recording the time it takes to return to a machine. What did the inventor of this machine need to know while developing the machine?
Physics
1 answer:
Scilla [17]2 years ago
4 0
Dredging is what the inventor of this machine need to know while developing the machine.
Hope this helps!
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Which type of mirror produces images that are always upright and at the same distance from the mirror as the object is?
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7 0
3 years ago
Read 2 more answers
A 0.140-kg baseball is dropped from rest. It has a speed of 1.20 m/s just before it hits the ground, and it rebounds with an upw
irga5000 [103]

Answer:

22 N upward

Explanation:

From the question,

Applying newton's second law of motion

F = m(v-u)/t....................... Equation 1

Where F = Average force exerted by the ground on the ball, m = mass of the baseball, v = final velocity, u = initial velocity, t = time of contact

Note: Let upward be negative and downward be positive

Given: m = 0.14 kg, v = -1.00 m/s, u = 1.2 m/s, t = 0.014 s

Substitute into equation 1

F = 0.14(-1-1.2)/0.014

F = 0.14(-2.2)/0.014

F = 10(-2.2)

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6 0
3 years ago
Stars within the halo move in random orbits that extend above and below the disk of the galaxy, while stars in the disk move in
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4 0
3 years ago
If the strength of the magnetic field at A is 200 units and the strength of the magnetic field at B is 50 units, what is the dis
Whitepunk [10]
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Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. A small coil is
attashe74 [19]

Answer:

0.125 volts

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The induced emf can be sufficient to stimulate neuronal activity.

One such device generates a magnetic field within the brain that rises from zero to 1.5 T in 120 ms.

We need to find the induced emf within a circle of tissue of radius 1.6 mm and that is perpendicular to the direction of the field. The formula for the induced emf is given by :

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\phi is magnetic flux

So,

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So, the induced emf is equal to 0.125 volts.

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