emcrazy14
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0 
Questions Asked

emcrazy14:
Group Title
A retailer sells a video recorder for 880 pounds. the price includes VAT at 21% and 34% profit. Calculate the cost price of recorder.
 updated 6 days ago
 4 replies
 No Medals Yet
Mathematics

emcrazy14:
Group Title
A firm owns 96 apartments. At $550 per month, each apartment can be rented. However for each $25 increase per month there will three vacanci…
 updated 13 days ago
 No Medals Yet
Mathematics

emcrazy14:
Group Title
CHALLENGE! The hint says first number is 4. I need the rest of the number.
 updated one month ago
 7 replies
 1 Medal
Mathematics

emcrazy14:
Group Title
Is phenol a stronger acid or H2CO3? @ganeshie8
 updated 2 months ago
 10 replies
 1 Medal
Mathematics

emcrazy14:
Group Title
In 4^x+3=8^x1, what is the value of x?
 updated 2 months ago
 14 replies
 3 Medals
Mathematics

emcrazy14:
Group Title
When the string attached to the body moving in a circle breaks then force acting on the string at that instant is;
A) 0
B) infinity
…
 updated 2 months ago
 8 replies
 1 Medal
Mathematics

emcrazy14:
Group Title
A student calculates the speed of sound as 327.66 m/s. She estimates that her result is accurate to 3%. Which of the following gives her res…
 updated 3 months ago
 No Medals Yet
Mathematics

emcrazy14:
Group Title
Which chlorine compound has bonding that can be described as ionic with some covalent character?
1. NaCl
2. MgCl2
…
 updated 3 months ago
 4 replies
 2 Medals
Mathematics

emcrazy14:
Group Title
The wave is travelling from left to right. At the instant shown, the points P and Q have zero and maximum displacement respectively.
Which…
 updated 3 months ago
 7 replies
 1 Medal
Mathematics

emcrazy14:
Group Title
A train on a mountain railway is carrying 200 people of average mass 70 kg up a slope at an
angle of 30° to the horizontal and at a speed …
 updated 3 months ago
 29 replies
 3 Medals
Mathematics

emcrazy14:
Group Title
Someone please explain this to me.
Which statements are true?
Ammonia and chlorine react in the gas phase.
…
 updated 3 months ago
 15 replies
 3 Medals
Mathematics

emcrazy14:
Group Title
Quick question. Please help.
Physical quantities can be classed as vectors or as scalars.
…
 updated 3 months ago
 8 replies
 1 Medal
Mathematics

emcrazy14:
Group Title
I need help with this please.
 updated 3 months ago
 2 replies
 1 Medal
Mathematics

emcrazy14:
Group Title
The products of cracking an alkane X are methane, ethene and propene. The mole fraction of ethene in the products is 0.5. What is the identi…
 updated 3 months ago
 2 replies
 1 Medal
Mathematics

emcrazy14:
Group Title
Please help me with these questions.
 updated 3 months ago
 2 replies
 No Medals Yet
Mathematics

emcrazy14:
Group Title
A turbine at a hydroelectric power station is situated 30 m below the level of the surface of a large
lake. The water passes through the t…
 updated 3 months ago
 1 reply
 No Medals Yet
Mathematics

emcrazy14:
Group Title
Someone please explain how to do this MCQ.
 updated 3 months ago
 8 replies
 1 Medal
Mathematics

emcrazy14:
Group Title
A mass of liquid of density p is mixed with an equal mass of another liquid of density 2p. No change of total volume occurs. What is the den…
 updated 3 months ago
 4 replies
 No Medals Yet
Mathematics

emcrazy14:
Group Title
2 cos (2x60) + sin (2x60)= 1/ under root 5.
Solve this equation in the range 0<x<360.
 updated 4 months ago
 No Medals Yet
Mathematics

emcrazy14:
Group Title
Please help me with the graph for the emf induced.
Fig 6.2 shows the variation with time t of the current Ip in the primary coil. There's n…
 updated 4 months ago
 14 replies
 4 Medals
Mathematics

emcrazy14:
Group Title
How do I integrate this? Please help.
2u/(1+u)
 updated 4 months ago
 12 replies
 2 Medals
Mathematics

emcrazy14:
Group Title
Find all the roots of the equation (2z1)^3=1 in the form x+iy.
 updated 4 months ago
 31 replies
 No Medals Yet
Mathematics

emcrazy14:
Group Title
The complex numbers p and q are such that p=2 and arg (p)= pi/3; q=7 and arg (q) = pi/4.
Find the modulus and argument of (p/q)^5.
 updated 4 months ago
 11 replies
 1 Medal
Mathematics

emcrazy14:
Group Title
The complex numbers z and w are represented, respectively, by the points P(x,y) and Q(u,v) respectively in Argand diagrams and w=1/z
(a) sh…
 updated 4 months ago
 15 replies
 2 Medals
Mathematics

emcrazy14:
Group Title
Please help me simplify this. I keep getting the wrong answer.
 updated 4 months ago
 24 replies
 3 Medals
Mathematics

emcrazy14:
Group Title
Please someone help me with this question.
A second transverse wave T2, of amplitude A has the same waveform as wave T1 but
lags behind T…
 updated 4 months ago
 1 reply
 No Medals Yet
Mathematics

emcrazy14:
Group Title
Please someone help me with this question.
A second transverse wave T2, of amplitude A has the same waveform as wave T1 but
lags behind T…
 updated 4 months ago
 24 replies
 No Medals Yet
Mathematics

emcrazy14:
Group Title
Suggest one reason why the fringe pattern produced by light passing through a
diffraction grating is brighter than that produced from the s…
 updated 4 months ago
 9 replies
 No Medals Yet
Mathematics

emcrazy14:
Group Title
CoL63+ + e <> CoL62+
The E nought for this redox system when L=H2O is 1.82 V and when L=NH3 is 0.11 V.
Comment on this.
 updated 4 months ago
 27 replies
 5 Medals
Mathematics

emcrazy14:
Group Title
Someone please help me with this question related to stereochemistry.
http://assets.openstudy.com/updates/attachments/531fef39e4b040e0bc63…
 updated 4 months ago
 12 replies
 No Medals Yet
Mathematics
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