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insens350 [35]
2 years ago
13

If a projectile is launched at a velocity of 20 m/s, is it in equilibrium? Why or why not?

Physics
1 answer:
almond37 [142]2 years ago
6 0

Answer:

  • Why not

Explanation:

.....make me brainlyest

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Why does a wave undergo a 180° phase change at a fixed boundary?
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Answer:

The phase change of 180^{o} can be theoretically understood as follows:

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6 0
3 years ago
Unpolarized light whose intensity is 1.46 W/m2 is incident on the polarizer in the drawing. (a) What is the intensity of the lig
Serhud [2]

Answer:

0.73 W/m²

0.2522 W/m²

Explanation:

I_0 = Unpolarized light = 1.46 W/m²

\theta = Analyzer angle = 54°

Light through first filter

I_1=\frac{I_0}{2}\\\Rightarrow I_1=\frac{1.46}{2}\\\Rightarrow I_1=0.73\ W/m^2

The intensity of the light leaving the polarizer is 0.73 W/m²

After passing through analyzer

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The intensity of the light that reaches the photocell is 0.2522 W/m²

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