3 years ago

What device is used to protect bulidings from lightning strikes

Physics

1 answer:

miv72 [106K]3 years ago

3 0

Ground rods- Log thick heavy rods buried deep into the earth around a protective structure

You might be interested in

In a parallel circuit the component with the highest resistance will have a low electric current.

statuscvo [17]

Should be true.

it's been awhile since I was learning this

4 0

3 years ago

Define pressure. write it's Si unit.<br>

tekilochka [14]

Hi :)

Pressure is the force applied perpendicular to the surface of an object per unit area

The SI unit of pressure is N/m^2

Hope this helps!

8 0

3 years ago

Read 2 more answers

At what net rate does heat radiate from a 300-m^2 black roof on a night when the roof's temperature is 33.0°C and the surroundin

Fynjy0 [20]

Answer:

24445.85 J/s

Explanation:

Area, A = 300 m^2

T = 33° C = 33 + 273 = 306 k

To = 18° C = 18 + 273 = 291 k

emissivity, e = 0.9

Use the Stefan's Boltzman law

$E = \sigma \times e \times A\times\left ( T^4 -T_{0}^{4}\right )$

Where, e be the energy radiated per unit time, σ be the Stefan's constant, e be the emissivity, T be the temperature of the body and To be the absolute temperature of surroundings.

The value of Stefan's constant, σ = 5.67 x 10^-8 W/m^2k^4

By substituting the values

$E = 5.64 \times 10^{-8}\times 0.9 \times 300 \times (306^{4}-291^{4})$

E = 24445.85 J/s

7 0

4 years ago

The main benefit you receive from using locomotor movements in a variety of activities is? Question 3 options:

Helga [31]

Answer:

run walk jump digk pwss botch

Explanation:

fudge

4 0

3 years ago

Read 2 more answers

Why does the Moon not have an atmosphere?

Elena-2011 [213]

Answer: Moon is much smaller in size and has very less mass, when compared to our mighty earth and there is absence of strong magnetic field on the moon which could protect from the incoming solar radiation from the sun. Since there is no magnetic field, it can swipe off any materials that are present there on the moon, diminishing the atmosphere.

This is the reason why moon does not have any atmosphere.

6 0

4 years ago