Answer:
Explanation:
As we know that moment of force is given as
now we have
now from above formula we have
here we know that
so we have
Answer:Weight is the result of gravity . The gravitational field strength of Earth is 10 N/kg (ten newtons per kilogram). This means an object with a mass of 1 kg would be attracted towards the centre of Earth by a force of 10 N. We feel forces like this as weight.
Explanation:
Answer:
because of the raindrop velocity relative of the car has a vertical and horizontal component
Explanation:
- The car moves in a <em>horizontal direction </em>relative to the ground. The raindrops fall in the <em>vertical direction</em> relative to the ground.
- Their velocity relative to the moving car has both vertical and horizontal components and this is the reason for the diagonal streaks on the side window.
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The diagonal streaks on the windshield arise from a different reason.
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The drops are pushed off to one side of the windshield because of air resistance.
Explanation:
Density is measured in kg⋅m−2 . This means that it is derived from fundamental units which are the kilogram and metre.
The oxygen atom, before it gains these two electrons, has a neutral charge, meaning that it has as many protons as electrons. After it gains 2 electrons, it has 2 more electrons than protons. Each electron has a charge of -1, so the whole molecule will have a charge of -2. The correct answer is a)!
