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AnnZ [28]
3 years ago
6

What precautions should be taken on board a vessel during a lightning storm?

Physics
2 answers:
ArbitrLikvidat [17]3 years ago
8 0

Answer:

When huge amount of electrical discharge occurs from the atmosphere, a lightning storm is said to occur.

Following precautions must be taken if one is on board a vessel during a lightning storm:

  • During a lightning storm, all the plugs should be disconnected and electrical appliances must be switched off.
  • One should remain inside the cabin and not move outside because the charges remain on the surface of a conductor.
  • The movement should be avoided. It would be best to lay straight down.

dusya [7]3 years ago
7 0

<span>The precautions which should be taken on board a vessel during a lightning storm are:</span>

<span>(i)  </span>All electrical equipments should be unplugged.

<span>(ii) </span>Keep yourself away from all metal parts such as engines, metal tanks, stoves etc.

<span>(iii) </span><span>Stay inside the boat. </span>

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The gravitational force of attraction between two students sitting at their desks in physics class is 2.59 × 10−8 N. If one stud
motikmotik
<h2>The distance between students is 2.46 m</h2>

Explanation:

The force of attraction due to Newton's gravitation law is

F = \frac{Gm_1m_2}{r^2}

Here G is the gravitational constant

m₁ is the mass of one student

m₂ is the mass of second student .

and r is the distance between them

Thus r = \sqrt{\frac{Gm_1m_2}{F} }

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r = \sqrt{\frac{6.673x10^-^1^1x31.9x30.0}{2.59x10^-^8} }

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3 0
3 years ago
Read 2 more answers
The clothes washer in your house consumes 470 kWh of energy per year. Price of the washer is $360 and the lifetime of the washer
VashaNatasha [74]

Answer:

$893

Explanation: the complete question should be

The clothes washer in your house consumes 470 kWh of energy per year. Price of the washer is $360 and the lifetime of the washer is 10 yrs. Energy price in your city is 9 cents per kWh. What is the lifecycle cost of the clothes washer? (assume a maintenance cost of $11 per year)

SOLUTION

Given:

The clothes washe power consumption (PC) is 470 kWh

Price of the washer (P) is $360

lifetime of the washer (L) is 10 yrs

Energy price in the city (E) is 9 cents per kWh (Covert to $ by dividing 100)

maintenance cost (M) is $11 per year

Lifecycle cost = P + (PC × L × E) +M + L

Lifecycle cost = $360 + (470kWh × 10years × 9cents/100) + ($11 × 10years)

=$893

7 0
3 years ago
At an air show, a stunt pilot performs a vertical loop-the-loop in a circle of radius 3.63 x 103 m. During this performance the
san4es73 [151]

Answer:

189 m/s

Explanation:

The pilot will experience weightlessness when the centrifugal force, F equals his weight, W.

So, F = W

mv²/r = mg

v² = gr

v = √gr where  v = velocity, g = acceleration due to gravity = 9.8 m/s² and r = radius of loop = 3.63 × 10³ m

So, v = √gr

v = √(9.8 m/s² × 3.63 × 10³ m)

v = √(35.574 × 10³ m²/s²)

v = √(3.5574 × 10⁴ m²/s²)

v = 1.89 × 10² m/s

v = 189 m/s

5 0
3 years ago
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