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klemol [59]
3 years ago
15

A 0.500-kg block slides up a plane inclined at a 30° angle. If it slides 1.50 m before coming to rest while encountering a frict

ional force of 2 N, find (a) its acceleration, and (b) its initial velocity.
Physics
1 answer:
julia-pushkina [17]3 years ago
7 0
B it’s Intail velocity
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The seismic activity density of a region is the ratio of the number of earthquakes during a given time span to the land area aff
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Answer:

0.0059

Explanation:

According to the question the seismic activity density is given by

\text{Seismic activity density}=\frac{\text{Number of Earthquakes over a given time span}}{\text{The land area affected}}

Here,

Number of Earthquakes over a given time span = 424

The land area affected = 71300 mi²

So,

\text{Seismic activity density}=\frac{424}{71300}\\\Rightarrow \text{Seismic activity density}=0.0059

The seismic activity density is 0.0059

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