bucketforacrown

I have a test on Friday morning and can't figure out how to write this code. Assistance would be greatly appreciated!!

We have been using for & while loops, string slices, find() methods, etc.

Here is the question:

def remove_duplicates(strng):

"""

Returns a string which is the same as the argument except only the first occurrence of each letter is present. Upper and lower case letters are treated as different. Only duplicate letters are removed, other characters such as spaces or numbers are not changed.

>>> remove_duplicates("apple")

'aple'

>>> remove_duplicates("Mississippi")

'Misp'

>>> remove_duplicates("The quick brown fox jumps over the lazy dog.")

'The quick brown fx jmps v t lazy dg'

>>> remove_duplicates('121 balloons 2 u')

'121 balons 2 u'

"""

A lady, let's call her Ms Smith, is on a hill with a slope of 3 degrees. 50m downhill from her, another lady lets go of her fully laden shopping trolley (with frictionless wheels) which begins to roll straight down the hill. Ms Smith immediately chases after the cart, with a top acceleration of 2m/s^2. How far has the trolley rolled before Ms Smith catches up to it?

Now, I've had a very long summer holiday and have completely forgotten all useful physics-related information, so how would I go about this problem?

I'm looking at buying laptop, and am tossing up between these two Toshibas; one has an Intel Pentium Dual Core processor T4300 2.1GHz, and the other Intel Core2Duo 2.2GHz. They both have 4Gb of RAM.

I'm buying this laptop to use at uni, if that gives you an indication of my usage. Which would be better? Or would I not notice a difference?

I have fallen in love with MLIA, wondered if anyone could recommend any blogs that are as awesome (or nearly as awesome) as that site

Out of all the people I've spoken to, I seem to be the only person that hates eating uncooked cookie dough/cake mixture, e.g. I find it weird to eat raw flour and egg etc.

Is there ANYONE out there that agrees with me?

My friend recently gave me the songs All Deliberate Speed by Mae and Skeleton Key by Margot & The Nuclear So & Sos. Do you know of any similar songs/bands?

We were trying to make one up in Chemistry last week, but couldn't make a good one. And I need a good one so I'll remember it. Here are the symbols in case you've forgotten:

K

Na

Ca

Mg

Al

C

Zn

Fe

Sn

Pb

H

Cu

Ag

Au

Pt

Using the techniques PCR, gel electrophoresis, and DNA sequencing

(by the way, it is a stomach cancer gene. I ran out of characters)

You know how the songs purchased on Apple's iTunes Store have a protection on them? What does this protect them from? I heard a rumour that it meant you could only copy it five times or something. Is that true?

I'm currently doing some practice questions and came across one that looked simple at first until i tried it, then became hideously lost in a tangle of sins and cos's.

here's the question.

Prove that (sin2A - sinA) / (cos2A - cosA + 1) = tanA

I'm doing an investigation. my hypothesis is "that the age of a crown fern determines its fertility". is this the null hypothesis or the alternate?

You know how tree trunks grow rings, making the tree wider as it gets older, do ferns do that too? Ferns with trunks that is, like crown ferns

Crown ferns send out runners to produce more plants around them, increasing their population. how would this benefit them/help them survive?

L’hymne national de la République française a été appelé car il a été a l’origine chanté dans les rues de Marseille et il est devenu connu pendant la révolution française.

i'm using beaucoup de FAR too much in my speech. My teacher wants us to use year 13/7th form/senior structures in our writing and mine is too basic. Any suggestions???

what I want to say is "it was the individual's responsibility to question the world around him and consider the evidence for himself in a rational manner..."

but otago university is quite particular about using gender-inclusive words, even to the extent of using Godself instead of Himself.

so how would I word this sentence using gender-inclusive words? I could say "it was the individual's responsibility to question the world around them (which isn't right, as them is plural) and consider the evidence for themself??"

Any ideas?

I have just started getting into grime music but don't know many artists. Can you recommend me some? so far I've listened to:

Dizzee Rascal

Tinie Tempah

Kano

Bashy

Wiley

Lethal Bizzle

Lady Sov

Lele [speaks]

Skepta

Sincere

Any others you can think of? I've played those ones to death

Can you please explain to me what it is, and give me some examples of drum and bass artists?

Thanks