Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
Saladin:
--- Quote from: Snake on May 06, 2010, 07:04:35 pm ---I thought the formula to find acceleration was A=V-U/T
With V being Final speed and U initial speed and T time
--- End quote ---
That is correct.
Malak:
--- Quote from: A@di on May 06, 2010, 06:49:03 pm ---
No clue about the electrodes thing. it was left unanswered here too : https://studentforums.biz/index.php/topic,1057.msg8998.html#msg8998
Parallax Error : Error in reading an instrument employing a scale and pointer because the observer's eye and pointer are not in a line perpendicular to the plane of the scale.
Avoid parallax error : Placing the eye perpendicular to the marking on the scale to be read. If you are measuring the volume of liquid in a measuring cylinder , make sure you positioned your eye to take readings at the bottom of menicus for water and top of menicus for mercury.
--- End quote ---
Thx alot :)
Another question :
When u wrap the string aroung something and measure that length...How do u find the circumference...
Do you multiply the length by the number of times the string is wrapped or u divide it by that number?
Hesham Mhd:
Can any1 plz explain the thermal expansion? And What expands more.. solids, liquids or gases and why? Thanks in advance
Hesham Mhd:
Another One :
If a ray diagram is given, what should be done? i mean, when should we magnify and when should we simply draw the upside-down image? Thanks
Ghost Of Highbury:
@ang3l - if u wrap the string 5 times around the object. the circumfrence = string length/5
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