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Nutka1998 [239]
3 years ago
10

A 60-kg block initially at rest on a frictionless horizontal surface is acted upon by a force of 3.0 N for a distance of 7.0 m.

How much kinetic energy does the block gain?
Physics
1 answer:
Schach [20]3 years ago
5 0

Answer:

Explanation:

Kinetic energy generated = work done by force = force x displacement

= 3 x 7 = 21 J

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chloride, ion, -1, this is an anion

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A commuter train travels from the airport for half an hour at 110 km/hr until it reaches the
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it would be 10km

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Help in this question, please.
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3 years ago
Water leaks out of a 3,200-gallon storage tank (initially full) at the rate V '(t) = 80 -t, where t is measured in hours and V i
kvasek [131]

Answer:

water leak is 650 gallons

time required to full drain is 80 hrs

Explanation:

given data

volume V = 3200 gallon

rate = V(t) = 80 - t

to find out

how much water leak between 10 and 20 hour and  drain complete

solution

we know here rate is 80 - t

so here rate will be

\frac{dV(t)}{dt} = 80 - t

and for time 10 and 20 hour

take integrate between 10 and 20

so water leak = \int\limits^ {20}_ {10} {(80-t)} \, dt   .....................1

water leak = ( 80t - \frac{t^{2} }{2} )^{20}_{10}

water leak = 650

so water leak is 650 gallons

and

we know here for full tank drain condition

water leak full = 80 t - \frac{t^{2} }{2}

3200  = 80 t - \frac{t^{2} }{2}

6400 = t² - 160 t

t = 80

so time required to full drain is 80 hrs

6 0
4 years ago
In the context of depth perception, which of the following is a monocular cue?
olga55 [171]
Hello there.

<span>In the context of depth perception, which of the following is a monocular cue?

</span><span>(C) Convergence
</span>
8 0
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