Wednesday
April 23, 2014

Posts by Kong


Total # Posts: 24

algebra
10y^3+y^2-21y

algebra
10y^3+y^2-21y

Physics
Which of the following desceriptions about ideal gas is/are correct? 1)An ideal gas obeys Boyle's law only under high temp and low pressure 2)the molecules of an ideal gas have no size 3)the internal energy of an ideal gas consists of kinetic energy only A.1)only B.3)only ...

Physics
so how about this question? Which of the following desceriptions about ideal gas is/are correct? 1)An ideal gas obeys Boyle's law only under high temp and low pressure 2)the molecules of an ideal gas have no size 3)the internal energy of an ideal gas consists of kinetic en...

Physics
is it right that ideal gas only obey the boyles law under high temp and low pressure?

Physics
is that right ideal gas only obey the boyles law under high temp and low pressure?

Maths(logarithmic functions)
solve it: a) 3 log x with base 8 + 2 = 0 b)2 log (x-1)with base 6 =log 4 with base 6

chemistry(rusting)
i know that metal placed in more acidic solution will produce rust faster.but why metal placed near the sea shore will easily have rust?the wind with moisture which contains salt solution,right? however ,i have a problem.When i put the metal in the test tube with sodium chlor...

chemistry(rusting)
i know that metal placed in more acidic solution will produce rust faster.but why metal placed near the sea shore will easily have rust?the wind with moisture which contains salt solution,right? however ,i have a problem.When i put the metal in the test tube with sodium chlor...

chemistry(rusting)
i know that metal placed in more acidic solution will produce rust faster.but why metal placed near the sea shore will easily have rust?the wind with moisture which contains salt solution,right? however ,i have a problem.When i put the metal in the test tube with sodium chlor...

Algebra 3
(x^2-1)<8 (x+3)(x-3)<8 -3<x<3

chemistry(rusting)
i know that metal placed in more acidic solution will produce rust faster.but why metal placed near the sea shore will easily have rust?the wind with moisture which contains salt solution,right? however ,i have a problem.When i put the metal in the test tube with sodium chlor...

chemistry
pH value is higher,the more acidic the solution.

chemistry(rusting)
thx for your teaching first.however ,i have a problem.When i put the metal in the test tube with sodium chloride solution,it rust slower than the one i put in distilled water with air,why?

chemistry(rusting)
i know that metal placed in more acidic solution will produce rust faster.but why metal placed near the sea shore will easily have rust?the wind with moisture which contains salt solution,right?

Math
ans: take square root[(8.3/tan60)^2 + 8.3^2] (Pyth.thm) =9.58m

chemistry(rusting)
i know that iron(II)hydroxide is brown solid,how about iron(III)oxide?

chemistry(rusting)
Why metal(eg. iron)placed at aqueous solution will be more easily occur rusting?Is it due to the mobile ions in the aqueous solution ?Please give me an detail explanation ,thank you.

cal
The circumference of a sphere was measured to be 86.000 cm with a possible error of 0.5 cm. Use linear approximation to estimate the maximum error in the calculated surface area and Estimate the relative error in the calculated surface area.

cal
Let f(x)=-5e^(x+1)+e^8 . find f'(0)

cal
Let f(x)=-5e^(x+1)+e^8 . find f'(0)

Cal
The circumference of a sphere was measured to be 86.000 cm with a possible error of 0.5 cm. Use linear approximation to estimate the maximum error in the calculated surface area and Estimate the relative error in the calculated surface area.

basic math
Ms Sue you are the best. Thanks

basic math
do i round up 9.2085 to 9.21 or leave it as 9.20

Pages: 1

Search
Members