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ycow [4]
3 years ago
11

Why is lighting visible before thunder is heard

Physics
2 answers:
mariarad [96]3 years ago
7 0

Answer:

Light is faster than sound.

Explanation:

Tamiku [17]3 years ago
3 0

Answer: Lightning is mostly light and electricity, this light that is hitting is going at a rate of 299,792.458 km per second (or 186,282 miles per second) this is so much compared to sound which only travels at about 761 mph (or approximately 332 meters per second). Fun fact: The lightening you are seeing is that coming back to the cloud because the process happens so fast.

Explanation:

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A dart is thrown horizontally at a target's center that is 5.00 m, away. The dart hits the target 0.150 m below the targets cent
boyakko [2]

Answer:

  v₀ₓ = 28.6 m / s

Explanation:

This is a missile throwing exercise

          y = v_{oy} t - ½ g t²

as the dart is thrown horizontally the vertical velocity is zero (I go = 0)

          y = - ½ g t²

          t = \sqrt{- \frac{2y}{g}  }

let's calculate

         t = \sqrt{- \frac{2 \  (-0.150)}{9.8} }

         t = 0.175 s

the expression for horizontal displacement is

         x = v₀ₓ t

         v₀ₓ = x / t

         v₀ₓ = 5.00 / 0.175

         v₀ₓ = 28.6 m / s

7 0
3 years ago
True or False.The magnetic fields of both Uranus and Neptune are highly tilted relative to their rotation axes and significantly
MA_775_DIABLO [31]

Answer:

True.

Explanation:

The magnetic axis and rotation axis of both of these planets are misaligned that why it is right to say that the magnetic fields of both Uranus and Neptune are highly tilted relative to their rotation axes and significantly offset from the planet's centers.

8 0
3 years ago
The elements in group 17 of the periodic table are all called halogens. All halogens have the same
Savatey [412]

Answer:

All halogens have the same NUMBER OF VALENCE ELECTRON

The group pf periodic table is based on their valence electron

Hope this is correct and helpful

HAVE A GOOD DAY!

8 0
3 years ago
Read 2 more answers
Two planets are orbiting a star. Planet A is closer to the star than Planet B. Which description explains the expected motion of
77julia77 [94]
<span>Planet A orbits faster than Planet B, i believe is the answer. hope that helps

</span>
6 0
3 years ago
Read 2 more answers
Earth’s atmosphere is in hydrostatic equilibrium. What this means is that the pressure at any point in the atmosphere must be hi
Misha Larkins [42]

Answer: The pressure that one experiences on the Mount Everest will be different from the one, in a classroom. It is because pressure and height are inversely proportional to each other. This means that as we move up, the height keeps on increasing but the pressure will keep on decreasing. This is the case that will be observed when one stands on the Mount Everest as the pressure is comparatively much lower there.

It is because as we move up, the amount of air molecules keeps on decreasing but all of the air molecules are concentrated on the lower part of the atmosphere or on the earth's surface.

Thus a person in a low altitude inside a classroom will experience high pressure and a person standing on the Mount Everest will experience low pressure.

6 0
4 years ago
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