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Explain Newton’s law of Gravitation

Newton’s law of gravitation states that the force of attraction between two objects due to their masses is proportional to the product of the two objects and inversely proportional to the distance between th...
MS
Answered by Mingyuan S. • Physics tutor
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Describe blood flow through the heart

The heart is made of cardiac muscle and is split into 4 chambers known as atria and ventricles.Low pressure, deoxygenated blood from the tissue enters the right atrium via the superior and inferior vena cava...
CH
Answered by Claire H. • Biology tutor
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By close analysis of the extract, discuss how Williams explores gender roles. (p32 ‘Stanley (yelling): Sit down!...’ – p33 ‘...Blanche: 'DuBois.’)

The theme of alcohol is recurrent through ‘Streetcar’ to assist Williams in his presentation of complex gender roles. This motif becomes one which is associated with men, in particular Stanley as the alpha m...
NJ
Answered by Naomi J. • English tutor
4895 Views

A circle with center C has equation x^2 + y^2 + 8x - 12y = 12

Circle equation = (x - a) 2 + (y - b) 2 = r 2 Where Centre coordinates (a, b) and radius 'r'Therefore x 2 + y 2 + 8x - 12y = 12 is to be rewritten in this formComplete the square to find a and bThis gives(x+...
HK
Answered by Henry K. • Maths tutor
9660 Views

Expand and simplify (x − 4)(2x + 3y)^2

Rewrite (x − 4)(2x + 3y) 2 as (x - 4)(2x + 3y)(2x + 3y) Multiply out the first two brackets to give -(2x 2 + 3xy - 8x 2 - 12y)(2x + 3y) Multiply out the remaining brackets4x 3 + 6x 2 y - 16x 2 - 24xy + 24xy ...
HK
Answered by Henry K. • Maths tutor
16641 Views