All machines are not 100% efficient because of <span>C. Friction</span>
Answer:
<h2>60 N</h2>
Explanation:
The magnitude of the force can be found by using the formula
w is the workdone
d is the distance
From the question we have
We have the final answer as
<h3>60 N</h3>
Hope this helps you
Explanation:
neglecting air resistance both will land at the same moment.
both have therefore the same acceleration.
The weightiness of the added
water displaced is equivalent to the joined weight of the two extra people who come
to be into the boat:
<span>m water g = 2 x 690 N</span>
<span> =
1,380 N</span>
<span>
</span>
The mass of the water displace
is then
<span>m water g = 1,380 N</span>
<span> = 1,380 N / 9.8 m/s^2</span>
<span> = 141 kg</span>
<span>
</span>
Compute the calculation for
density for the volume of water displace and practice this outcome for the mass
of the water displace to get the answer:
<span>p water = mass of water / volume of water</span>
<span>
</span>
<span>volume of water = mass of water / p water</span>
<span> = 141 kg / 1000 kg /m^3 eliminate
kilogram</span>
<span> = 0.14 m^3 the additional volume
of water that is displaced</span>
