Wednesday
June 19, 2013

Posts by Shane

Total # Posts: 253

Physics
Two resistors of equal resistance are connected in series with each other and are connected to a battery that produces a potential difference of 8 V. If the current is 0.2 A what is the value of each resistance?

Maths
State the x-intercepts of the graph of y=1-x^2

Maths
Point P(-8,-3)and Q(6,9)are joined by a straight line.Find the equation of the line joining the midpoint of PQ to the origin.

Maths

Maths
Given the quadratic function y =3x^2+10x-8 (i)Find the y-intercept. (ii)Find the x-intercept. (iii) Calculate the axis of symmetry. (iv)Find the coordinates of the vertex (v)Sketch the graph of the above function.

Chemistry
Complete and balance the following equations.Identify each type of the reactions. (a) Cr + O2 >Cr2O3: (b)Na2CO3 + Mg3(PO4)2: (c)H3BCO+ H2O> B(OH)3 + CO + H2:

chemistry
Represent this reaction with a balance chemical equation. Solid aluminium hydride is formed by a combination reaction of its two elements.

chemistry
compleat and balance this equation. Na2CO3+Mg3(PO4)2

Chemistry
what is the name of the ions that are formed when the following compounds dissolve in water. (a) BaBr2 (b) (NH4)2CrO4 (c)HBr

Agriculture
Why is there difference in the quality of the poultry products?

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