Kong
This page lists questions and answers that were posted by visitors named Kong.
Questions
The following questions were asked by visitors named Kong.
Let f(x)=-5e^(x+1)+e^8 . find f'(0)
14 years ago
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.
13 years ago
i know that iron(II)hydroxide is brown solid,how about iron(III)oxide?
13 years ago
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?
13 years ago
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 t...
13 years ago
solve it: a) 3 log x with base 8 + 2 = 0 b)2 log (x-1)with base 6 =log 4 with base 6
13 years ago
is that right ideal gas only obey the boyles law under high temp and low pressure?
13 years ago
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...
13 years ago
10y^3+y^2-21y
13 years ago
10y^3+y^2-21y
13 years ago
A debt of R1000 with interest at 16 percent compounded quarterly is to be amortized by 20 quarterly payments (all the same size) over the next 5 years, what will the size of these payments be?
6 years ago
Answers
The following answers were posted by visitors named Kong.
Ms Sue you are the best. Thanks
17 years ago
ans: take square root[(8.3/tan60)^2 + 8.3^2] (Pyth.thm) =9.58m
13 years ago
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?
13 years ago
pH value is higher,the more acidic the solution.
13 years ago
(x^2-1)<8 (x+3)(x-3)<8 -3<x<3
13 years ago
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 cons...
13 years ago
yhgiu
11 years ago
My answer is 1.24792 x 10^-10 is it correct?
9 years ago
Updated, 4.9917x 10^-10?
9 years ago
4,5,9=-,+?? What is the answer
6 years ago