Recent content by alliereid

Homework Statement The answer is [ H3O+ ] > [HSO4-]>[SO4-2]>[OH-], but I do not understand how they got it? Homework Equations The Attempt at a Solution First I tried to put H2SO4 into water and got HSO4-. Then I tried to make an ice table, but it didn't work out since Ka for...

Homework Statement What is the relationship between the weight (N) vs mass (g)? Homework Equations The Attempt at a Solution I am suppose to predict the relationship between the weight vs mass. I'm guessing it's directly proportional but I can't explain why in simple terms? I...

Okay I attached a diagram. As you can see, the train is going up and I'm trying to find the accel from the top of the hill to the bottom.

Homework Statement Calculate the acceleration of the train during the trip down the first hill Time for train to go from top of hill to bottom:3.5 s Time for train to pass point at top of hill 1.5s Time for train to go from bottom to top of first hill:7 s Time for train to pass point of...

Homework Statement Could life arise from non life today? Why? Homework Equations The Attempt at a Solution I know that it's not possible today but I'm not sure why?

And what type would that mutation be? Would it be correct to say that cancer mutations are not always visible, and one could run tests to see if the person has cancer?

Homework Statement The effects of a mutation are not always visible. How might a biologist determine whether a mutation has occurred, and if so, what type of mutation it is? Homework Equations The Attempt at a Solution Would it be correct to say that cancer is not always...

Homework Statement What can you conclude about average slope between two points and the slopes of the individual line segments on which the points lie? Homework Equations The Attempt at a Solution I thought that the average slope slope numerical answer is in between the slopes...

Homework Statement What can you conclude about average slope between two points and the slopes of the individual line segments on which the points lie? Homework Equations The Attempt at a Solution I thought that the average slope slope numerical answer is in between the slopes of...

What is the defining equation of the concept of slope? I thought it could be rise / run = m or Y2-Y1 / X2-X1 = m but then the next question asks to give the two common forms of the mathematical equation for slope involving X and Y? So would that not be those two equations?

A u g c g a a u g

Alright, thanks for your help.

Could you explain to me how you got the answer? I'm sure this question will come up again on my final.

I changed the equation into log form. y = 2^(x+3) + 4 log2y = (x+3)+4 So does that not mean that y can't equal negative 4 since logs can't have a negative?

Oh I'm sorry, you are right the answer is 4, I confused the answer I got which was -4 with the real answer. Yeah what I don't get is why it is 4, I got -4. It's a multiple choice question: A. y = 4 B. x = 3 C. x = -3 D. y = -4