3 years ago

Which substance has a high albedo? A. Dark rock B. Soil C. Liquid water D. Ice

1 answer:

6 0

D. Ice

The amount of light that reflects back off a surface; snow and ice has a high albedo.

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andrey2020 [161]

Answer:

$-1.42 m/s^2$ is the car's acceleration.

Explanation:

Initial velocity of the driver = u = 14 m/s

Final velocity of the driver = v = 5.5 m/s

Duration of time in which 14 m/s velocity is changed to 5.5 m/s = t = 6.0 s

Acceleration of the driver = a

Using first equation of motion: v = u + at

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$5.5 m/s-14m/s =a\times 6.0 s$

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$a=\frac{-8.5 m/s}{6.0 s}=-1.417 m/s^2\approx -1.42 m/s^2$

Negative sign indicates the that is deceleration is occurring that is speed of the car is decreasing.

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MrRissso [65]

B is the correct answer

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