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What are the 3 main types of chemical bonding? Give definitions of them.

IonicCovalentMetallic Ionic bonding The electrostatic attraction between positive and negative ions Covalent bonding Electrostatic attraction between a shared pair of electrons and the nuclei Metallic bondin...
Answered by • Chemistry tutor
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A diver of mass 60kg stands on the end of a diving board of length 2m from the pivot point. Calculate the upward force exerted on the retaining spring 30cm from the pivot point.

This question is asking about forces acting around a pivot point, so we can use the formula for the moment M = F*D about the pivot point. The clockwise and anticlockwise moments around the pivot must be equa...
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Answered by Louis G. • Physics tutor
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Outline and explain 2 advantages of using unstructured interviews in sociological research

Unstructured interviews are an interpretivist method that takes the form of an informal conversation and supplies qualitative data. It’s a micro approach which means that it looks at small-scale interactions...
Answered by • Sociology tutor
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Given the circumference x^2 - 2x + y^2 = 3, find the position of the center P and the value of the Radius. Then find the intercepts with the y axis and the tangent to the circumference at the positive y intercept.

Find center and radius From completing the quadratic: x^2 - 2x + 1 - 1 + y^2 = 3(x-1)^2 + y^2 = 4 hence, center P(1, 0) and radius R = sqrt(4) = 2 Find y intercept Intercept with y axis, then x = 0hence1 + y...
Answered by • Maths tutor
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When do I need to make past participle agreements?

You should make the past participle agree with its subject in the following cases: 1) It is a past participle of an ordinary verb conjugated with ETRE E.g. je suis allé e (JE = SUBJECT) 2) It is a past parti...
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Answered by Aoife M. • French tutor
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