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Explain how an acceleration-displacement graph could be used to determine the frequency of oscillation of a metal plate.

Acceleration (A)= Angular Velocity 2 (w 2 ) Displacement (x)Angular Displacement= 2pi Frequency (f)Gradient= A/x = w 2 = [2pi*f] 2 Rearrange the equation to get - f= (sqrt)gradient/ 2pi
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Answered by Tise O. • Physics tutor
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Find the equation of the line through the following points: (-2, -3) and (1, 5)

Note the formula: y - y 1 = m(x - x 1 )x, y, x 1, y 1 refer to the values of your given coordinates. 'm' symbolises the gradient of the line you are asked to findRearrange the formula to make 'm' the subject...
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Answered by Tise O. • Maths tutor
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Describe the similarities and differences between the processes of osmosis and diffusion

Similarities:Both processes are passive (do not require energy)In both processes molecules move from an area of high concentration to low concentration and therefore down a concentration gradient.Differences...
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Answered by Grace H. • Biology tutor
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Solve the equation 18x^2-3x=6

First put the equation into the correct form by setting it to 0:18x^2-3x-6=0Look for the common factor in the equation and take it out:3(6x^2-x-2)Using the grid method (which I would show on whiteboard) fact...
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Answered by Grace H. • Maths tutor
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What are the three components that make up the Human Development Index?

HDI is a composite indicator used to rank levels of development among countries. The 3 components are:Life expectancy (years at birth)Education index (mean years of schooling/expected years of schooling)Stan...
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Answered by Grace H. • Geography tutor
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