Answer:
The 5.53 moles of virus in an oil tanker.
Explanation:
Given:
Mass of virus mg
Mass of oil kg
From the formula of moles,
Moles of viruses is given by,
Mass of 1 oil tanker divide by mass of 1 mole of virus,
Therefore, the 5.53 moles of virus in an oil tanker.
Answer:
C. 6km
Explanation:
Dolphin is travelling with an average velocity of 3 kmph. So 1 h = 3km
And 2 h = 3×2 = 6km.
Answer:
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Explanation:
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The equivalent of Newton's second law for rotational objects is given by:
where
is the net torque acting on the object
is its moment of inertia
is its angular acceleration
For a hoop rotating around its perpendicular axis, the moment of inertia is
where m is the mass and r the radius. By using the data of the wheel, m=0.750 kg and r=33.0 cm=0.33 m, we find
and since the torque is
, the angular acceleration of the wheel is
108 681(nearest whole day)