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3 years ago

How can sand dunes be saved?

Physics

2 answers:

Anton [14]3 years ago

6 0

Vegetation can be planted or wooden sand fences can be in place for a healthy dune system

Margarita [4]3 years ago

5 0

Sand dunes refers to accumulation of sand grains, which is shaped into a mound by the wind. Sand dunes are first line of protection against coastal storm and beach erosion. Sand dunes destruction can be caused by many factors, but the most prominent factor is human activity. The sand dunes can be preserve and saved by planting beach grasses, erecting sand fencing, erecting and using public crossovers, keeping boats off from the sand dunes and desisting from the act of burning beach grasses.

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3 years ago

Hail comes straight down at a mass rate of m/Δt = 0.050 kg/s and an initial velocity of v0 = -15 m/s and strikes the roof perpen

cupoosta [38]

Answer:

$F = 1.5 N$

Explanation:

Let the hails are coming down with speed "v" and then rebound with the same speed in opposite direction

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now we know by Newton's 2nd Law

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here we have

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now plug in all data

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