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poizon [28]
4 years ago
14

Who invented lightning rods to protect buildings from lightning?

Physics
2 answers:
Dahasolnce [82]4 years ago
7 0
Benjamin Franklin invented lightning rods to protect buildings from lightning in the 1700's.


Hope this helps .
mina [271]4 years ago
6 0

Answer:

B. Benjamin Franklin

Explanation:

In 1753, Benjamin Franklin published in London, an article where he proposed the idea of ​​using an iron rod sharpened to a point on the roofs of buildings to protect them from lightning. He designed them to attract the lightning strike and thus prevent the electric shock from causing damage.

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“I won first place at the science fair!” Jeannette says. “Should I include that as part of my career portfolio?” What is the BES
Fofino [41]

Answer: B

Explanation: If she is interested in it then yes

7 0
3 years ago
A unit for measuring frequency is? ohm watt ampere hertz
pishuonlain [190]

"Frequency" is a measure of how frequent something is.

Its unit is the "Hertz".

1 Hertz  =  1 per second

8 0
3 years ago
b) The depth of a wrecked ship is 1000 m below sea level. A ship transmits a wave of frequency 50 kHz and receives an echo 2.4 s
alexandr402 [8]

The speed of the wave in water is 833.33 m/s

The given parameters;

  • depth of the wrecked ship, d = 1000 m
  • frequency of the wave transmitted, f = 50 kHz
  • time of motion of the echo, t = 2.4 s

The speed of the wave in water is calculated  by applying echo equation as shown below;

2d = velocity \times time\\\\velocity = \frac{2d}{time} \\\\velocity =  \frac{2\times 1000 \ m}{2.4} \\\\velocity = 833.33 \ m/s

Thus, the speed of the wave in water is 833.33 m/s

Learn more here: brainly.com/question/23433611

4 0
3 years ago
New seafloor material is formed at places in Earth’s crust where –
mr_godi [17]

Answer:

D, I think.

Explanation:

I had a quiz in Plate Tectonics and there was 2 questions that are related to this, but not the exact question.

Which material rises from cracks in oceanic crust

-molten rock

Which is the first step in the seafloor spreading process?

-a crack forms in oceanic crust.

those are all right btw, so you can decide if the answer I told you is right or not.

4 0
2 years ago
Read 2 more answers
1. While riding a chairlift, a 55-kg skier is raised a vertical distance of 370 m. What is the total change in the skier's gravi
stiv31 [10]

Answer:

<em>199,430Joules</em>

Explanation:

Gravitational potential energy is the energy possessed by a falling object due to virtue of its position.

gravitational potential energy = mass * acceleration due to gravity * height

gravitational potential energy = 55 * 9.8 * 370

gravitational potential energy = 539 * 370

gravitational potential energy = 199,430

<em>Hence the total change in the skier's gravitational potential energy is 199,430Joules</em>

5 0
3 years ago
Read 2 more answers
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