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Provide reasons why a renewable service is more valuable than a non-renewable services

1 answer:

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One small reason would be renewable resources can be used more and never lose supply on the other hand non-renewable resources will one day run out

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A constant force of 12N is applied for 3.0s to a body initially at rest. The final velocity of the body is 6.0ms–1. What is the

sp2606 [1]

From the question,
$u = 0m {s}^{ - 1}$
$v = 6m {s}^{ - 1}$

$t = 3s$
$F=12N$

Using Impulse, the product of the constant force, F and time t equals the product of the mass of the body and change in velocity.

$Ft =m(v-u)$

$12(3.0)=m(6.0- \: 0)$
This implies that

$36.0 = 6m$
$m = \frac{36.0}{6.0}$
$\therefore \: m = 6.0kg$

You can also use the equation of linear motion,
$v = u + at$
$6 = 0 + a(3)$
$6 = 3a$
$a = \frac{6}{3}$

$a = 2 {ms}^{ - 2}$
But
$F=ma$
$12 = m(2)$
$12 = 2m$
$\frac{12}{2} = m$
$\therefore \: m = 6kg$

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3 years ago

When positively charged particles were radiated onto a gold atom, a few of the particles bounced back. Which of the following ca

ratelena [41]

Positively charged protons in the nucleus of the gold atom .... rutherford scattering ???

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3 years ago

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A dump truck contains a load of soil. Which action will leave the dump truck's

soldier1979 [14.2K]

Answer:

Explanation:

This will not change the weight and therefore not change the inertia

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2 years ago

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A man is crossing a river of width 100 m on a motorboat. The velocity of the motor boat is 4 m/s eastward and the velocity of th

Airida [17]

By the Pythagorean theorem we get $3^2+4^2=5^2$ . Thus the resultant velocity will be 5 m/s.

However there is a typo in the choices. It should take 25 seconds to cross the river, not 20 seconds, since the boat actually travels 125 meters due to the water current, and 125/5 = 25 seconds.

Alternatively you can calculate the eastward component of travel and get 100 / 4 = 25 seconds.

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2 years ago

If the work done is 360 J, and the force used to do the work is applied over a distance of 12 m, what is the value of the force

hoa [83]

The formula for work is $W=Fdcos\theta$ . Plugging in the numbers, you get:
$360=F(12)cos(0)$
$F= \frac{360}{12}$
The answer is 30 N.

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3 years ago

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