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mariarad [96]
3 years ago
14

1. A plane mirror has asurface​

Physics
2 answers:
WARRIOR [948]3 years ago
4 0
Reflective surface

Explanation
kenny6666 [7]3 years ago
3 0

Answer:

A plane mirror is a mirror with a flat (planar) reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence. The angle of the incidence is the angle between the incident ray and the surface normal (an imaginary line perpendicular to the surface).

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How long will it take a ball to hit the ground if it's dropped from a height of 2.0 m?
love history [14]

Answer:

0.63 s

Explanation:

We have,

  • Height, h = 2.0 m
  • Initial velocity, u = 0 m/s
  • Acceleration due to gravity, g = 10 m/s²

We have to find the time taken.

⠀⠀⠀⠀⇒ h = ut + ½gt²

⠀⠀⠀⠀⇒ h = ½gt²

⠀⠀⠀⠀⇒ 2 = ½ × 10 × t²

⠀⠀⠀⠀⇒ 2 = 5 × t²

⠀⠀⠀⠀⇒ 2/5 = t²

⠀⠀⠀⠀⇒ √(2/5) = t

⠀⠀⠀⠀⇒ <u>0.63 s = t</u>

Therefore, time taken is 0.63 seconds.

8 0
2 years ago
What kind of charging occurs when you slide your body across a plastic surface?
Romashka [77]
<span>Charging by friction occurs, Electrons are transferred when one object rubs against another.

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6 0
4 years ago
In a lab,two pieces of cellphane tape are placed on a lab table. They are quickly ripped off the lab table. Which would you pred
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3 years ago
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Answer:

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3 years ago
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