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How do you find the distance a ball travels if fired at speed u and angle theta from the ground?

From a right angled triangle with hypotenuse u and angle theta, we see the horizontal speed is (u cos theta) and the initial vertical speed is (u sin theta). As the ball moves in a symmetric parabola, it ...

Answered by Douglas B. • Maths tutor

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Using first principles find the differential of x^2

Lim((f(x+h)-f(x)))/h= lim(((x+h)²-x²)/h)=lim((h²+2xh)/h) as h tends to 0 the limit becomes 2x

Answered by • Maths tutor

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Critically evaluate research into Eye-witness testimony

Loftus and Palmer conducted (1974) a laboratory experiment which was strictly controlled, giving it high experimental validity as they could make sure that IV affected the DV. Both experiments proved that...

Answered by Allen J. • Psychology tutor

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if f is defined on with f(x)=x^2-2x-24(x)^0.5 for x>=0 a) find 1st derivative of f, b) find second derivative of f, c) Verify that function f has a stationary point when x = 4 (c) Determine the type stationary point.

a) f'(x)=2x-2-12x^1/2B)f'(x)=2+6x^-3/2c)f'(4)=0d) local minimum

Answered by • Maths tutor

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Explain the stages of mitosis.

Interphase: each chromosome replicates protein synthesis occurs, 2 copies of each organelle Prophase: Chromosomes shorten, condense, nuclear envelope breaks downMetaphase: chromosomes line up in centre of...

Answered by Isabela R. • Biology tutor

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