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Ratling [72]
3 years ago
11

If the Coast Guard warns of a giant wave of water approaching the shore as a result of a major earthquake, they are warning of

Physics
2 answers:
kolbaska11 [484]3 years ago
4 0

Answer:

C. A Tsunami

Explanation:

When there are earthquakes, volcanic eruptions or some underwater disturbances, a hue amount of water is displaced in the form of huge waves in a sea. This is known as tsunami.

In 2004 a major tsunami was caused by an undersea earthquake, in Indian Ocean, resulting in waves as high as 30 meters and affected 15 countries. Indonesia, Sri Lanka, and India were the worst affected countries.

shepuryov [24]3 years ago
3 0
The answer is A Tsunami
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Two identical particles of charge 6 μμC and mass 3 μμg are initially at rest and held 3 cm apart. How fast will the particles mo
krek1111 [17]

Answer:

Explanation:

The charges will repel each other and go away with increasing velocity , their kinetic energy coming from their potential energy .

Their potential energy at distance d

= kq₁q₂ / d

= 9 x 10⁹ x 36 x 10⁻¹² / 2 x 10⁻² J

= 16.2 J

Their total kinetic energy will be equal to this potential energy.

2 x 1/2 x mv² = 16.2

= 3 x 10⁻⁶ v² = 16.2

v = 5.4 x 10⁶

v = 2.32 x 10³ m/s

When masses are different , total P.E, will be divided between them as follows

K E of 3 μ = (16.2 / 30+3) x 30

= 14.73 J

1/2 X 3 X 10⁻⁶ v₁² = 14.73

v₁ = 3.13 x 10³

K E of 30 μ = (16.2 / 30+3) x 3

= 1.47 J

1/2 x 30 x 10⁻⁶ x v₂² = 1.47

v₂ = .313 x 10³ m/s

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3 years ago
A lamp that uses 100.0 watts of power requires a voltage of 210.0 volts. What is the resistance of the lamp?
alexandr402 [8]
Resistance = Voltage/Current
Wattage = Voltage * Current

<span> <span> </span> </span> That means the current drawn by the lamp is equal to 100 watts divided by 210 volts.

Resistance =\frac{210}{ \frac{100}{210} }


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