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kodGreya [7K]
2 years ago
7

Which optical device can focus light to a point through reflection?

Physics
1 answer:
frosja888 [35]2 years ago
7 0

Answer:

A

Explanation:

did the quiz

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A 1180kg car is moving at a speed of 85.5 km/h. Find the force needed to bring the car to rest in a distance of 300m
yarga [219]

Answer:

1110 N

Explanation:

First, find the acceleration.

Given:

Δx = 300 m

v₀ = 85.5 km/h = 23.75 m/s

v = 0 m/s

Find: a

v² = v₀² + 2aΔx

(0 m/s)² = (23.75 m/s)² + 2a (300 m)

a = -0.94 m/s²

Find the force:

F = ma

F = (1180 kg) (-0.94 m/s²)

F = -1110 N

The magnitude of the force is 1110 N.

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c

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What transplant method would prevent the rejection of tissue after an organ transplant
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3 years ago
If your phone needs to be on a charger for three hours to be fully charged, and the charger draws 2 amps, then how many electron
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But using a weaker charger for your phone will only lengthen charging time. And using a stronger charger than that the phone will accept doesn't affect charging at all and only wastes money.

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