# 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?

**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?

**Science**

How percentage n2gas on air

**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.

**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?

**Math**

77.8

**algebra**

63-40=23

**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...

**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

**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...

**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