Questions asked by Raknos

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A concave mirror of focal length 10cm. A square wire of side 3cm is placed 23cm away from the mirror. The centre of the square lies on the principal axis. What is the area enclosed by the image?
How do I compare ${sin 1}^{\circ}$ $sin 1^@$ and $sin 1$ $sin1$ ?
A little confusion; How do you represent hydrolysis in a chemical equation?: by writing H2O or H3O+
This is a question from my 11th grade textbook, why does the alkylation of benzene with 1-chloropropane gives 2-propyl benzene and not 1-propylbenzene?
How many lone pairs are present on carbon?
What is the ifferential equation of the family of hyperbolas: $\frac{x^{2}}{a^{2}} + \frac{y^{2}}{b^{2}} = 1$ $x^2/a^2 + y^2/b^2 = 1$ ?
Arrange in increasing order of boiling point and give reason? Benzaldehyde, p-tolualdehyde, p-nitrobenzaldehyde, acetophenone.
How does $e^{- x} (\frac{d y}{d x}) - e^{- x} y = e^{- x} cos x$ $e^(-x)(dy/dx)-e^(-x)y=e^(-x)cosx$ simplify to $\frac{d}{d x} (y e^{- x}) = e^{- x} cos x$ $d/dx(ye^-x)=e^-xcosx$ ?
How to calculate ammeter and voltmeter readings?