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A ball is thrown up with an initial velocity of 8 m/s and initial height of 1.5m above the ground. Calculate the maximum height the ball reaches and the time it takes to get there.

Travelling upwards

u = 8m/s     v = 0 m/s      a  = -9.8m/s       S = ?        t = ?

v = u + at                                      v= u2 + 2a(S - 1.5)

<...
ES
Answered by Evan S. Physics tutor
6175 Views

Describe the cardiac cycle, including all the relevant electrical and valvular events.

Starting in the right atrium, the sinoatrial node (SAN) will send a signal to contract both atria, opening the atrioventricular valves (tricuspidand bicuspid/mitral) and forcing blood in to both ventricle...

KA
3192 Views

Differentiate the function f(x) = x^2 * e^2x with respect to x

let u = x^2              let v  = e^2x

du/dx = 2x             dv/dx = 2e^2x

d/dx = vdu/dx + udv/dx = 2x e^2x + 2x^2e^2x

Therefore

d/dx = ...

ES
Answered by Evan S. Maths tutor
3808 Views

What is the significance of the colour 'red' in Steinbeck's 'Of Mice and Men'?

The colour red was used to symbolise Curley's wife. It is described that her nails, dress and other physical characteristics as being red. This portrays her character as perhaps being quite promiscuous an...

PB
39246 Views

What causes a heart attack (also known as mycocardial infarction) and how are they treated?

During an individuals life arteries become covered in fatty plaque deposits. This causes the the inside (lumen) of the arteries to narrow. This narrowing increases the likelyhood of blockage of platelets ...

SC
Answered by Saskia C. Biology tutor
2757 Views

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