Recent content by Reema

We had this question in the lecture .. but I couldn'nt copy the steps I was trying to understand but I dind'nt looool. How many grams of KClO3 are required to produce 50 g of 02 from the following decomposition reaction? 2KClO3 ---> 2kClO3 + 3O2 the final answer is 127 I...

sorry, the length of the wire is 2.5 m

[SIZE="5"]A 500 kg car uses 10 kg aluminum alloy tire ring, what is the compression stress on one of the wheel rings if the contact area is 0.10 m^2 with the tire so the model answer is stress = F\A 127.5\0.1 = 12,750 Pa where did we get the force from ? 127.5 ?

[SIZE="4"]A wire made of a particular material is loaded with a lod of 500 N. The diameter of the wire is 1mm. The length of the wire is 2.5 m, and it stretched 8mm when under load. What is the young modulus of this material? My work E= stress\strain stress= F\A r= d/2 ==>...

Wow .. Finally I got 0.36 :D thaaaaaanks a lot

dou you mean (PE = KE )

Thanks Leveret do you think that there is something wrong with this equation A^2=( v^2/w) + X^2 because I thought it might be A^2=( v^2/w^2) + X^2 ?

[FONT="Comic Sans MS"][SIZE="3"]A mass of 0.1 kg connected to a spring with a spring constant 10 N/M oscillates horizontally on frictionless table. The speed of the mass is 3.0 m/s when the displacement is 0.2 m form its equilibrium position. What is the maximum displacement from equilibrium...