ANY DOUBTS HERE!!!

[Summer :]]

Bio related question.
in an experiment to find the effect of temperature on rate of breakdown of H2O2 by catalase.
what can we take as the control?

control group is at room temperature 25 degrees celsius

[halosh92]

physics cie 2009 nov
p1

Q6
Q14
Q21

[halosh92]

physics cie 2009 nov
p1

Q6
Q14
Q21

can anyone solve this???

[astarmathsandphysics]

2 mins

[astarmathsandphysics]

6B. Graph is upside down
14.A
horizontal component at start=vertical component=v/sqrt2)
at top of flight vertical component of velocity is zero, so velocity=v/sqrt(2)
1/2m(v/sqrt2))^=1/2(1/2mv^2)
21.C energy=area under graph just a bit more than1/2*100*2*10^-3 ie 0.11

[ruby92]

control group is at room temperature 25 degrees celsius

thnkx

[halosh92]

physics cie paper 1 AS
june 2005 Q22
nov 2008 Q24
VERY URGENT

[halosh92]

physics cie paper 1 AS
june 2005 Q22
nov 2008 Q24
VERY URGENT

someone solve this plzzzzzzzzzz
with details

[melony]

physics cie paper 1 AS
june 2005 Q22
nov 2008 Q24
VERY URGENT

As well as that please cud sum1 help me.. how do u determine the direction of the resultant of three coplanar forces. i.e mechanics paper 04/m/j/05

thank yu!

[Sue T]

in cie phys it says (the subject content) 'use a c.r.o'
i havent done ny practical in school usin a c.r.o!
and also 'use calibration curves'
ny1 nos how 2 use both of them?

[The SMA]

need help & explanations on cie physics O/N paper 11
q 4, 9, 13, 15, 16, 22

[vanibharutham]

would be nice to know the year number

[pjb13]

For Business unit 2 do I need to know abt Elton Mayo ( motivation theory)?? Cuz its there in my book but havent seen it in papers.

[halosh92]

guys plzz help
cie physics AS
nov 2001 p2
Q3c
could someone draw the arrows for me i want to check
thxx much!!!!!!!!!!!

[nid404]

yup check the attachment