- Messages
- 216
- Reaction score
- 148
- Points
- 53
Why would you even want to hack an email?who knows how to hack an email ?? urgently needed and for sure can hack the email not i think or ill try... for AS
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
Why would you even want to hack an email?who knows how to hack an email ?? urgently needed and for sure can hack the email not i think or ill try... for AS
initially mass was 1.4x10-6 g. when one nucleus of Mg decays it produces one nucleus of Fe. that means mass of Mg that has decayed = mass of Fe produced. that means total mass will always be equal to 1.4x10-6 gm/j /2005/paper4/q7 last part please explain me properly
Thankyou so much for help but can u plz show me the exact position of P in Q#6 iiHey I attached them for you.
For Q6 a) use right hand rule, thumb along current direction and other fingers along magnetic flux direction.
b) i) use Flemings left hand rule, thumb is direction of force, first finger direction of flux and second finger direction of current, then, do this to both magnetic field of earth and magnetic field due to wire, you'll see forces at Point P will be equal and opposite.
ii) just use given equation and substitute
Yes, my sketches are very bad , I'm sorry :/
Also, I just checked the ms, why am I not allowed to say increase R for more smoothing, only larger capacitor, anyone could explain this to me please? This is Q7 c)ii)1)
Also, tell me if I have any mistake and thanks
http://www.cie.org.uk/images/157397-november-2012-question-paper-22.pdf
Question 5 part B please explain!
I know that p.d
AC = 4.8V
BC = 7.2V
AD = 8V
BD = 4V
Now it's asking pd between CD so wouldn't CD be either CB + BD
or CA + AD
But the answer is 3.2V which means they are subtracting... why??
dada why and how?Question 2 is D
Huh? We first convert mm to metres and then chose the median value which is .71 and addition of .1 would give .72 and subtraction of .1 from .7 would in turn give .69dada why and how?
ok tysm....got it...thnx one againHuh? We first convert mm to metres and then chose the median value which is .71 and addition of .1 would give .72 and subtraction of .1 from .7 would in turn give .69
They are subtracting it because they have said calculate the potential difference, which generally means that the difference in voltage. Hence, we must subtract. I hope you understood!
Question 4 is Bhttp://qualifications.pearson.com/content/dam/pdf/A Level/Physics/2013/Exam materials/6PH07_01_que_20130509.pdf
question 2 4 and 5...help needed ASAP
ohkayy thnxx alotQuestion 4 is B
Frequency = 1/time period
Time period for one complete oscillation = 4 boxes = 4ms = (4 x 10^-3) seconds.
SO
Frequency = 1/(4 x 10^-3)
which = 250 Hz
So whenever they mention just pd, I subtractI just don't get it... Why would you ever add unless they ask the sum of the p.d, also if they had used the term voltage, then they would've certainly used the word, 'difference'.
Yup, but still google it, you might get a better idea.So whenever they mention just pd, I subtract
and when they mention sum of pd, I add right?
So if in that question they said sum of pd accross CD then I would add the pd's right?
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now