Abmon98
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My name is Abdel moniem, i blow my candles on the 7th of July 1998.
chemistry is my #1 subject
Egyptian,Muslim and proud ❤
"SUPPORTING GAZA !"
Blue and claret blowing in the wind
One valiant cry
We’ve got a name that everyone knows:
Barça, Barça, Baaarça!
“When life gives you lemons, make lemonade.”
"Dont Wish for it work for it"
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Questions Asked
Abmon98:
Group Title
a stone is thrown horizontally with speed 15m/s from the top of a cliff 30 metres high. construct a diagram showing the positions of the par…
updated 19 hours ago
No Medals Yet
Mathematics
Abmon98:
Group Title
a stone is thrown horizontally with speed 15m/s from the top of a cliff 30 metres high. construct a diagram showing the positions of the par…
updated 5 hours ago
27 replies
2 Medals
Mathematics
Abmon98:
Group Title
let P with coordinates (p,q) be a fixed point on the curve with equation y=mx+C and let Q with coordinates (r,s) be any other point on y=mx+…
updated yesterday
1 reply
No Medals Yet
Mathematics
Abmon98:
Group Title
Show that the points (7,12), (-3,-12) and (14, -5) lie on a circle with centre (2,0).
updated yesterday
2 replies
1 Medal
Mathematics
Abmon98:
Group Title
mid point of a line segment
…
updated 11 days ago
No Medals Yet
Mathematics
Abmon98:
Group Title
Enthalpy changes that are difficult to measure directly can often be determined using Hess’ Law
to construct an enthalpy cycle.
Which en…
updated 18 days ago
3 replies
2 Medals
Mathematics
Abmon98:
Group Title
8 There is one temperature, about 0.01 °C, at which water, water vapour and ice can co-exist in
equilibrium.
…
updated 24 days ago
2 replies
2 Medals
Mathematics
Abmon98:
Group Title
The enthalpy change of formation of cyclopropane is +53.3 kJ mol–1 and the enthalpy change of
atomisation of graphite is +717 kJ mol–1.
…
updated 25 days ago
No Medals Yet
Mathematics
Abmon98:
Group Title
Can anyone help in this chemistry question
https://mega.co.nz/#!Fx4XQILT!b-CAE5mTJzQ3kepRAB2qsmTFh5Nwmb3hUMpAh1YNvAk
here's the link link t…
updated 25 days ago
10 replies
2 Medals
Mathematics
Abmon98:
Group Title
The equilibrium constant, Kc, for the reaction H2(g) + I2(g) 2HI(g), is 60 at 450 °C.
What is the number of moles of hydrogen iodide in e…
updated one month ago
43 replies
4 Medals
Mathematics
Abmon98:
Group Title
integrate with respect to x
(e^x-e^-x)^2
…
updated one month ago
6 replies
3 Medals
Mathematics
Abmon98:
Group Title
the parametric equations of a curve are
x=2theta-sin2theta y=2-cos2theta
show that dy/dx=cot(theta)
…
updated one month ago
4 replies
3 Medals
Mathematics
Abmon98:
Group Title
The equation of curve is sqrt(x)+sqrt(y)=sqrt(a)
where is a positive constant. express dy/dx in terms of x and y
the straight line with e…
updated one month ago
1 reply
No Medals Yet
Mathematics
Abmon98:
Group Title
The diagram shows the curve y=(4-x)^ex and its maximum point M. the curve cuts the x-axis at A and the y-axis at B
write down the co-oordin…
updated one month ago
25 replies
2 Medals
Mathematics
Abmon98:
Group Title
for the curve xy(x+y)=84 find dy/dx at (3,4)
b) find the gradient of the curve x^3-2y^3-3xy at the point (2,1)
updated one month ago
26 replies
1 Medal
Mathematics
Abmon98:
Group Title
find dy/dx of
sinx+2cosy=1
updated one month ago
5 replies
1 Medal
Mathematics
Abmon98:
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find dy/dx
xy^2=16
updated one month ago
10 replies
5 Medals
Mathematics
Abmon98:
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Differentiate with respect to x
1/sin^2x
updated one month ago
15 replies
3 Medals
Mathematics
Abmon98:
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Differentiate with respect to x
1/ln(x)
updated one month ago
19 replies
3 Medals
Mathematics
Abmon98:
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T=T0e^-0.5t show that t=2lnT0/T Hence find t when T0=30 and T=10
updated one month ago
11 replies
2 Medals
Mathematics
Abmon98:
Group Title
given that logax^2y=p and that loga(x/y^2)=q find logax and logay in terms of p and q and hence express logaxy in terms of p and q
updated one month ago
11 replies
2 Medals
Mathematics
Abmon98:
Group Title
given that logax^2y=p and that loga(x/y^2)=q find logax and logay in terms of p and q and hence express logaxy in terms of p and q
updated one month ago
1 reply
No Medals Yet
Mathematics
Abmon98:
Group Title
if log10x=a and log10y=b express log10sqrt(10x/y^3) in terms of a and b
updated one month ago
17 replies
3 Medals
Mathematics
Abmon98:
Group Title
solve the following equation using the substitution 2^x=u
2^x+2^2-x=5
(4^x)-3(2^x)=10
…
updated one month ago
7 replies
2 Medals
Mathematics
Abmon98:
Group Title
Solve the following Equation
log3(x^2+2)=1+log3(x+2)
updated one month ago
6 replies
No Medals Yet
Mathematics
Abmon98:
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2^x*2^(2x+1)=128
Solve equation.
updated one month ago
8 replies
1 Medal
Mathematics
Abmon98:
Group Title
f(x) 7cosx-24sinx
Given that f(x)=Rcos(x+a) where R>=0, 0<=a<=1/2pi and x and a are measured in radians.
Find R and show that a=1.29 to 2 …
updated one month ago
11 replies
3 Medals
Mathematics
Abmon98:
Group Title
solve the equation 3cos2x-4sin2x=2 0<x<360
updated one month ago
24 replies
2 Medals
Mathematics
Abmon98:
Group Title
express 7sintheta+24 in the form Rsin(theta+a) where a is between 0<a<90 stating the values of a and R
solve the equation 7sintheta+24costhe…
updated one month ago
31 replies
2 Medals
Mathematics
Abmon98:
Group Title
Prove this identity
1/(cosA+sinA) +1/(cosA-sinA)=tan2AcosecA
…
updated 2 months ago
20 replies
2 Medals
Mathematics
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