# 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**

i cannot access the link; can you please post the full link

**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