Recent content by gordda

i don't get it how can you get that equation from the original equation?

i having so much trouble with this vector calculus question, someone please help. At time t, a moving particle has position r(t)=((e^t) + (e^-t))/2 i + ((e^t) - (e^-t))/2 j. a) find the cartesian equation of the path I know all you have to do is let the i component to equal x(t) and...

shouldn't i use values more closer to the range

ok i get 1 but in 2 how do i show that dp/dt is >0 or <0.

Hello I am having major difficulties with two Differential equation. 1. If I have the equation P=2000/(1+9e^.06t). where p=population and t=time. How do I work out when the population is growing the fastest? To work this question out do I just make t the subject and diff twice and let it...

I need help antidiffing this equation: (x^2+4)^(-1/2) i have tried subbing u=x^2+4 i have tried subbing u= (x^2+4)^(-1/2). i have tried making x the subject. even tried to use partial fraction, with no avail, because i could not figure out how to use partially factorize it. If anyone could...

hello, i have the Intergal ∫(5x^2-3x+1)/((x^2+1)(x-2)) dx i do not know what to do first, i firstly tried to change to partial fraction but that didn't work to, then i tried substitution technique and again i didn't have anything to substitue that got me any further, i don't know what else to...

i know that all protozoa is a single cell eukaryotic pathogen. i know some protozoa spread themselves by a vector, i know that in some cases like malaria the protozoa will change its antigen so that it can't be detected by the body's immune system and i also know that any pathogen that doesn't...

but i can't just use the formula n=cv because i need to change ppm into mol/L. and i have no idea how to do that? how do u change ppm into mol/L.

I am having major trouble trying to figure the concentration of a substance that is given by the AAS. Here's the question: To determine the iron content in a 'Milo' milk drink, a 5ml sample was diluted to 50ml. the absorption of the diluted solution and of several standard solution were...

Hello does anyone know the answer to these questions of the pathogen protozoa? i don't know whether to generalize all protozoa as the same or not? 1)How do the body respond to an invasion of protozoa and would be the same for most different types of protozoa? 2)Also do most type of...

if that was the case, then wouldn't that mean that the closest distance is when the submarine reaches Point P and the battle ship is at 60km away from Point P. cause that is when they are the closest

Howdy, i was wondering is anyone knows how a UV-visible spectroscopy works and how it differs to a double beam scanning spectrophotometer? i know that UV visible spectroscopy needs a radiation source that is passed into a silt and then in a monochromator but how do u know how to...

I got this question in a textbook and i don't really know what it is asking Here is the question: A submarine is traveling due east and heading straight for a point P. A battleship is traveling due south and heading for the same point P. Both ships are traveling at a velocity of 30km/hr...

Diabetes Mellitus type one is when the beta cells can't produce insulin and is treatable by injection of insulin. what is the difference between diabete mellitus type one and diabetes mellitus type 2 in terms of the symptons and treatment? I thought diabetes mellitus type 2 is even if the body...