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Ignoring air resistance and assuming gravity to equal 9.81. If a ball of mass 1kg is dropped from a height of 100m, calculate it's final velocity before it hits the ground.

G = 9.81u = 0s = 100v2 = u2 + 2asv2 = 2 * 100 * 9.81v = root( 2 * 100 * 9.81) = 44.29ms-1
This question can be made into a 3 part question suitable for adv...

Answered by Maths tutor
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What are the two types of waves and what are some of their uses/sources?

Transverse:Radio signalsElectromagnetic radiationTVPhone serviceOcean wavesLongitudinal:Seismic wavesSound wavesect.

Answered by Physics tutor
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What is the general formula for Hydrocarbons?

Hydrocarbons have Hydrogen-Carbon bonds and carbon-carbon bonds. The formula is HnC2n+2This is made clear when diagrams are drawn from different hydrocarbons and you can deduce this ...

Answered by Chemistry tutor
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Explain how blood glucose level is controlled.

Blood glucose level is controlled by two hormones, insulin and glucagon. These are produced by the pancreas. If the blood glucose (sugar) level is too high, then insulin is released. This causes glucose i...

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Answered by Amy W. Biology tutor
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Integrate with respect to x [x^2]

Integrate(x2)When we integrate we use the formula xn+1/n+1So therefore as in this case n=2So taking this all into account, the integral of x2 = x3/3

Answered by Maths tutor
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