# Posts by Sona

Total # Posts: 11

**phisecs**

A jet plane accelerates on a runway from rest at 4.03 m/s2. After 5 s, find its velocity in m/s?

*February 19, 2014*

**phisecs**

car initially moving at 19 m/s brakes with an acceleration of 2.97 m/s2. How long will it take for the car to stop in seconds?

*February 18, 2014*

**Science**

How percentage n2gas on air

*January 20, 2014*

**chemistry**

20.0 g of ammonium nitrate (NH4NO3) is dissolved in 125 g of water in a coffee-cup calorimeter, the temperature falls from 296.5 K to 286.4 K. Find the value of q for the calorimeter.

*November 23, 2013*

**International Relations**

I want to write a thesis statement on the topic "China is not going to be the next superpower" How am i supposed to write it?

*September 29, 2012*

**Math**

77.8

*April 16, 2012*

**algebra**

63-40=23

*May 20, 2011*

**maths**

Area of a circle = ðr² Inner diameter = 12 cm Inner radius = 6 cm Outer radius = 6+1 = 7 cm Cross sectional area of an annulus (ring) = ð(r2²-r1²) =(7²-6²)ð =13ð cm² Volume for a 1 metre tube: V=13ð&100cm cm³ =1300 cm³...

*November 16, 2010*

**maths**

the thickness of a metallic tube is 1 cm and the inner diameter of tube is 12 cm . Find the weight of 1 meter tube long, if the density of metal be 7.8 gram/cm^3

*November 16, 2010*

**maths**

kanyadoon express runs between dehradun and kanyakumari. for up & down train journey, kanyadoon express starts at 0900 hours everyday at both ends and reaches the destination at 0930 hours after three days. rahul travelled by kanyadoon express from kanyakumari to dehradun. how...

*November 16, 2010*

**maths**

the thickness of a metallic tube is 1 cm and the inner diameter of tube is 12 cm . Find the weight of 1 meter tube long, if the density of metal be 7.8 gram/cm^3

*November 16, 2010*

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