# Posts by Poonam

Total # Posts: 19

Math
73

math
If the area of rectangle is 24 sqm and its perimeter 20 m.Fram the quadratic equation find lenght and breath.

math
If the difference between the exterior regular polygon and an (n+1) sided regular polygon is 12 find the value of n.

Algebra
1) C

physics
two trains are moving towards each other with velocitied u1 and u2 see that the distance between them is x.the condition for them to not collide is

Physics
Cube of velocity

GEOMETRY
1/^r =1/^p 1/^q

Physics - Mechanics
velocity imparted to block will cause the the block to rise to a height h at this instant the kinetic energy is converted into potential energy completely so, (1/2)*M*(v')^2 = M*g*h use the value of v' from above solution and solve for h.

Physics - Mechanics
m-mass of bullet, v- initial velocity of bullet, let v'be the velocity of block. conservation of momentum, m*v+ M*0= m*(v/2)+ M*v' solve for v'.

physics
2.2

kv
A reference solution is to be prepared with 5 PPM parabenzopyrene (molecular weight = 252). The quantity of parabenzopyrene required for preparing one litre 5 PPM solution is

biochemistry
The amino acid arginine (R) has how many ionizable protons?

biochemistry
The amino acid R has how many ionizable protons?

biology

biology
What is a tissue-specific knockout mouse and an inducible knockout mouse?

chemistry
The time required for the completion of 99.9% of a first order reaction is equal to how many times that of its half life? (A)2 (B)3 (C)5 (D)10

Science
The line spectra of two elements are not identical because- (A)The element do not have the same number of neutrons (B)They have different mass numbers (C)Their outermost electrons are at different energy levels (D)They have different valencies

math
cotxcot2x-cot2xcot3x-cot3xcotx

english
The planes approach the airport. Appropriate subject verb agreement fill up