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Eddi Din [679]
3 years ago
13

a ball is thrown straight upward from point A, reaches a maximum height at point B, then falls back to point C, what is true abo

ut the balls velocity and acceleration the highest point B?
Physics
1 answer:
taurus [48]3 years ago
5 0

Answer:it has high amounts of potential energy.

Explanation:

When it reaches said peak gravity is pulling it down and it will evidently come down, which is energy.

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What three forms of energy are represented when a match is lit?
AysviL [449]

Answer:

Three forms of energy when a match is being lit are potential, kinetic and thermal.

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Explanation:

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3 years ago
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I'm not sure about these 2 questions
Natali [406]
2) Newton's third law<span>: For every action, there is an equal and opposite reaction.

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4 years ago
What is an incident angle
Hunter-Best [27]

Answer:In geometric optics, the angle of incidence is the angle between a ray incident on a surface and the line perpendicular to the surface at the point of incidence, called the normal. The ray can be formed by any wave: optical, acoustic, microwave, X-ray and so on. In the figure below, the line representing a ray makes an angle θ with the normal. The angle of incidence at which light is first totally internally reflected is known as the critical angle. The angle of reflection and angle of refraction are other angles related to beams.

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5 0
3 years ago
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Unpolarized light is incident upon two polarization filters that do not have their transmission axes aligned. If 21% of the ligh
Debora [2.8K]

Answer:

49.6°

Explanation:

I_0 = Unpolarized light

I_2 = Light after passing though second filter = 0.21I_0

Polarized light passing through first filter

I_1=\frac{I_0}{2}

Polarized light passing through second filter

I_2=\frac{I_0}{2}cos^2\theta\\\Rightarrow 0.21I_0=\frac{I_0}{2}cos^2\theta\\\Rightarrow cos^2\theta=\frac{0.21I_0}{\frac{I_0}{2}}\\\Rightarrow cos\theta=\sqrt{\frac{0.21I_0}{\frac{I_0}{2}}}\\\Rightarrow \theta=cos^{-1}\sqrt{\frac{0.21I_0}{\frac{I_0}{2}}}\\\Rightarrow \theta=cos^{-1}\sqrt{0.21\times 2}\\\Rightarrow \theta=cos^{-1}\sqrt{0.42}\\\Rightarrow \theta=49.6^{\circ}

The angle between the two filters is 49.6°

5 0
4 years ago
What does it mean if the slope is zero?
kiruha [24]
The object is not moving.

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Hope this helps!
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3 years ago
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