Limits..please help!
Ok so I just missed the past week of school due to other commitments..I have a math assignment due tomorrow and I wasn't in class when the material was reviewed. I'm having some trouble with the limit problems. I'm not quite sure what he is looking for. The question is...
For a parabola whose Directrix is given by the equation x=p and whose Focus is (h,k).
Is this by any chance the correct general form of the parabola?
x=1/2(h-p) [y^2 - 2yk + h^2+k^2-p^2]
OK never mind, false alarm. For some reason I was thinking strictly in the form of triangles for my vector subtraction. I believe situation b) is possible if you have any two vectors of opposite direction.
Suppose that vectors A, B and C are related by A-B=C.
a) Is it possible that A-B=C? If so, draw the sort of situation when this is so. (A is the magnitude of A, B of B and C of C.)
b) Is it possible that C=A+B? If so, then draw the sort of situation when this is so.
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a) I used the...
A model rocket is launched with an upward acceleration, after t seconds it runs out of fuel at x height. Sketch the a vs. t, v vs. t, and position vs. t graphs for the rocket from the time of launch until the moment it reaches max height.
-I know that after the rocket runs out of fuel it will...
A particle has an initial position X=0m and an initial velocity v=-6.0m/s. Its acceleration is given by the function [1.0 m/s^2 + (0.25 m/s^3)t] where t is in seconds.
Plot the acceleration vs. time. From your plot, determine when the velocity of the particle is zero.
-ok so if when I plot...
A particle has an initial position X=0m and an initial velocity v=-6.0m/s. Its acceleration is given by the function [1.0 m/s^2 + (0.25 m/s^3)t] where t is in seconds.
Use calculus to find the position of the particle at the instant when its velocity is zero.
-this is a bonus question on...
Fencing around a rectangular parking lot costs twice as much along the side facing the street than the other three sides. The fencing along the back of the lot costs $10 per meter. Express the cost C of the fence as a function of the width w if the length of the street side of the parking lot is...
The function is..
f(x) = 2x-2 if x<1
x^2 if 1 <= x <= 2
7-x if x>2
I made a table of values and graphed the points. The problem is my prof said something about not all of the points being connected by straight lines, some being connected by curves. I was wondering why...
I am having a bit of trouble expressing me answer in the correct simplified form.
The answer is... 2.45/2.5x10^17m^-2 (m is meters)
-what is the correct form to express this answer?
I am having a bit of trouble expressing me answer in the correct simplified form.
The answer is... 2.45/2.5x10^17m^-2 (m is meters)
-what is the correct form to express this answer?
From the following defining equations, determine the dimensions of the names physical quantities. Use L to represent the dimension length (distance), T to represent time and M to represent mass.
a) force, F: F=ma, (where m is mass and a is acceleration)
b) pressure, p: p=F/A, (where F is a...
OK but..
I have to do a calculation multiplying m and m^-3 and I don't know what unit to use for the answer.
Say..5m*5m^-3= 25..what unit?
Also, when you say "per meter cubed", are you talking about m^-3? or m*m^-3?
Thanks for your response.
Express the answer with the correct units and to the correct number of significant digits:
4pi/3(6495 kg/m^3)(0.026m)^3
-I know that the units in the answer would be kg because the m^3's will cancel.
-It is the sig figs that are giving me trouble. (perhaps the "pi" is screwing me up)...
From the following defining equations, determine the dimensions of the names physical quantities. Use L to represent the dimension length (distance), T to represent time and M to represent mass.
a) force, F: F=ma, (where m is mass and a is acceleration)
b) pressure, p: p=F/A...