# Posts by iqra

Total # Posts: 16

Physics
A rescue helicopter drops a package of emergency ration to a stranded party on the ground. If the helicopter is travelling horizontally at 40m/s at a height of 100m above the ground, what are the horizontal and vertical component of the velocity of the package just before it ...

physics
A stone is dropped from peak of the hill. It covers a distance of 30 metres in the last second of its motion. Find the height of the peak?

chemistry
two metals (copper and aluminum ) were placed into two separate beakers which both contained 0.5M CaCl2. Give a detailed description as to what might observed in each beaker as time progressed

fdr
a rectangular fence is constructed that will enclose 100 ft sq of land. three sides will be built from fencing that costs 10 dollars per foot and the 4th side will be built from fencing that costs 23 dollars per foot. find the dimensions of the rectangular fence that minimizes...

Chemistry
1035

math:Calculus
find the area bounded by the curve f(x) =-x^2 +6x -8 and the x axis using both left endpoint and right endpoint summation.

physics
A certain star is 10.9 light-years away. How long would it take a spacecraft traveling 0.960c to reach that star from Earth, as measured by observers in the following locations? on earth on spacecraft

chm
determing concentration by spectroscopy lab discussion?

literature
I read Soldier Home by Ernest Hemingway and found two reasons to prove that it is important from 1865 to present time and they world war views and also show soldier's life after war. I need one more reason to support and will anyone tell what points are important in it.

physics
Why is it impossible for a material to have an index of refraction less than one

physics
Explain how you can tell the following statement is false A neutron was moving in a circle while speeding up. As a result, gamma rays were emitted.

physics
Explain how you can tell the following statement is false A neutron was moving in a circle while speeding up. As a result, gamma rays were emitted.

chemistry
how many grams of iron are needed to react with 31.0L of chlorine gas at STP to produce iron(III) chloride?

languge art
if your mother doesn't like you to watch any television. your father thinks you should be allowed to watch as much television as you like, as long as it's educational. why do they different opinions? what is your opinion? do you agree with one of them, both of them, or...