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zaphod:
Help please
 updated one year ago
 18 replies
 3 Medals

zaphod:
Please help
 updated one year ago
 23 replies
 1 Medal

zaphod:
Please help
 updated one year ago
 16 replies
 3 Medals

zaphod:
Help please
 updated one year ago
 2 replies
 No Medals Yet

zaphod:
Help needed
 updated one year ago
 17 replies
 2 Medals

zaphod:
Please help with this question ..
 updated one year ago
 40 replies
 3 Medals

zaphod:
Please help with this question..
 updated one year ago
 13 replies
 3 Medals

zaphod:
Please help with this question. Thansk :)
 updated one year ago
 11 replies
 1 Medal

zaphod:
1.15g of a metallic element reacts with 300cm3
of oxygen at 298K and 1atm pressure, to form
an oxide which contains O2– ions.
…
 updated one year ago
 30 replies
 2 Medals

zaphod:
If x and y are distinct positive integers, what is the value of x^4 – y^4?
1) (y^2 + x^2)(y + x)(x – y) = 240
2) xy = yx and x > y
…
 updated one year ago
 1 reply
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zaphod:
A wire of length 1.20m is fixed at one end and stretched. A transverse wave moves with a speed of 300 ms along the wire and is reflected at …
 updated one year ago
 11 replies
 1 Medal

zaphod:
Does Silicon form a cation or is it anion?
 updated one year ago
 4 replies
 1 Medal

zaphod:
Please help...
 updated one year ago
 28 replies
 1 Medal

zaphod:
Why does AgCl dissolve in NH3 solution?
 updated one year ago
 10 replies
 1 Medal

zaphod:
What is the value of current in A1, A2 and A3
 updated one year ago
 26 replies
 1 Medal

zaphod:
Help please. thanks
 updated one year ago
 3 replies
 No Medals Yet

zaphod:
For which compound has a boiling point that is influenced by hrdogen bonding?
a) CH3CHO b) CH30CH3 c) HCO2H d) HCO2CH3
 updated one year ago
 4 replies
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zaphod:
Help needed :)
 updated one year ago
 14 replies
 2 Medals

zaphod:
please help. thanks:)
 updated one year ago
 16 replies
 2 Medals

zaphod:
can anyone explain me, how to do this :)
 updated one year ago
 19 replies
 3 Medals

zaphod:
In the diagram particles A and B are of mass 10kg and 8kg respectively rest on planes as shown. They are connected by a light inextensible s…
 updated one year ago
 6 replies
 No Medals Yet

zaphod:
how do i draw the lewis structure of No2 showing which all the valence electrons including bond electrons
 updated one year ago
 23 replies
 1 Medal

zaphod:
How do i differentiate this and find the gradient at point x=2
 updated one year ago
 21 replies
 1 Medal

zaphod:
why is k = 1/gradient? in a force/extension graph
 updated one year ago
 12 replies
 1 Medal

zaphod:
A conveyor belt traveling at 3.0ms and at an angle of 20 to the horizontal has 18kg of sugar dropped on to it each second.
 updated one year ago
 21 replies
 No Medals Yet

zaphod:
Help please :)
 updated one year ago
 39 replies
 1 Medal

zaphod:
What is the maximum speed at which a car can travel along a level road when its engine is developing 24kW and there is a resistance to motio…
 updated one year ago
 10 replies
 2 Medals

zaphod:
An acrobat of mass m slides down a vertical rope of height h. For the first three quarters of her descent she grips the rope with her hands …
 updated one year ago
 63 replies
 1 Medal

zaphod:
A car of mass 800kg moving at 20ms^1 is brought to rest by application of the brakes in a distance of 100m. Find the force exerted by the b…
 updated one year ago
 3 replies
 3 Medals

zaphod:
A particle is projected with speed v at an angle alpha to the horizontal. Find the speed of the particle when it is at height h
 updated one year ago
 15 replies
 3 Medals
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