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If a footballer kicks a ball straight down the pitch at 6 ms-1 at an angle θ of 30° above the horizontal, what is the maximum height reached by the ball?

First we must remember our equations of motion, (SUVAT equations).S = Displacement U = Initial velocity V = Final velocity A = Acceleration T = TimeV = U + A TS = U T + (1/2) A T 2 V 2 = U 2 + 2 A SS = (1/2)...
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Answered by Lorcan M. • Physics tutor
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A circuit with a cell of voltage 6V and two resistors of resistance 6 Ohms each connected in parallel. What is the current through the Cell?

Step 1 - draw the circuit. Step 2- Finding total resistance of resistors in parallel, 1/Rt = 1/R1 + 1/R2 where Rt is the total resistance of the circuit. Step 3- Use Ohms laws V=IR and rearrange for I to fin...
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Answered by Robyn S. • Physics tutor
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Calculate the rate of change of y(t) = 1/(4t), when t = 8

Write in differentiable form: 1/4 t -1 Differentiate: - 1/4 t -2 Evaluate derivative at t =8: 1/256
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Answered by Sophie C. • Maths tutor
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Show that (𝑥 − 1) is a factor of 𝑓(𝑥)=2𝑥^3 + 𝑥^2 − 8𝑥+ 5. Hence fully factorise 𝑓(𝑥) fully.

For the show that part of the question simply substitute all the 𝑥's in 𝑓(𝑥) with 1, as the factor 𝑥 − 1 means that 𝑥 - 1 = 0 therefore 𝑥 = 1. Once substituted in solve the equation and show that it is equal...
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Answered by Charlotte B. • Maths tutor
3072 Views

Describe the basic structure and function of the heart

The heart is made up of two pump systems: right and left, each side contains an atrium and a ventricle making up a total of 4 chambers. The left ventricle wall is thicker than the right as it is required to ...
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