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HSC Physics Marathon 2013-2015 Archive (1 Viewer)
- Thread starter Magical Kebab
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skillstriker
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re: HSC Physics Marathon Archive
the back emf is reduced because the coil is rotating slower (smaller rate of change of flux thus less emf induced as per Faraday) thus the supply current is almost unopposed which can burn the motor
the back emf is reduced because the coil is rotating slower (smaller rate of change of flux thus less emf induced as per Faraday) thus the supply current is almost unopposed which can burn the motor
iBibah
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re: HSC Physics Marathon Archive
lol forgot to change the bob at the starti wonder if this is aimed at a certain someone
Essentially, yes
Fizzy_Cyst
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re: HSC Physics Marathon Archive
Dont talk about Siddy like that!
Question: (3 marks)
A proton is fired into an Electric Field at a speed of 2.8x10^8ms-1. The field is provided by a pair of parallel plates with a potential difference of 1kV, separated by 1cm. The electric field is running up the page.
Determine the acceleration of the proton
Dont talk about Siddy like that!
Question: (3 marks)
A proton is fired into an Electric Field at a speed of 2.8x10^8ms-1. The field is provided by a pair of parallel plates with a potential difference of 1kV, separated by 1cm. The electric field is running up the page.
Determine the acceleration of the proton
Menomaths
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re: HSC Physics Marathon Archive
9.576x10^12 m/s^2 upwards?
Dont talk about Siddy like that!
Question: (3 marks)
A proton is fired into an Electric Field at a speed of 2.8x10^8ms-1. The field is provided by a pair of parallel plates with a potential difference of 1kV, separated by 1cm. The electric field is running up the page.
Determine the acceleration of the proton
Last edited:
superSAIyan2
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re: HSC Physics Marathon Archive
3.43 x 10^12 m/s^2 towards the negative plate (upwards)
3.43 x 10^12 m/s^2 towards the negative plate (upwards)
Last edited:
superSAIyan2
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re: HSC Physics Marathon Archive
im not 100% certain my answer is right though. Did you account for mass dilation?
im not 100% certain my answer is right though. Did you account for mass dilation?
Fizzy_Cyst
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re: HSC Physics Marathon Archive
Well done SuperSaiyan!
I was wondering to see how long it would take for someone to account for mass dilation! NOT TOO LONG AT ALL
Well done SuperSaiyan!
I was wondering to see how long it would take for someone to account for mass dilation! NOT TOO LONG AT ALL
Fizzy_Cyst
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re: HSC Physics Marathon Archive
Outline how doping causes holes to be generated in a p-type semiconductor and clarify how they act as charge carriers. USE EITHER THE TERM ACCEPTOR LEVEL OR DONOR LEVEL IN YOUR ANSWER AND PROVIDE AN APPROPRIATE DIAGRAM (3 MARKS)
Outline how doping causes holes to be generated in a p-type semiconductor and clarify how they act as charge carriers. USE EITHER THE TERM ACCEPTOR LEVEL OR DONOR LEVEL IN YOUR ANSWER AND PROVIDE AN APPROPRIATE DIAGRAM (3 MARKS)
Fizzy_Cyst
Well-Known Member
re: HSC Physics Marathon Archive
ANYONE FOR A HARD MATHS QUESTION?!?!
A sniper is lying in a prone position such that the barrel of his rifle is 30cm above the ground. The muzzle velocity of his rifle is 800ms-1.
A target appears at a distance of 1250m with the centre of the target 1.2m above the ground level. If the sniper was firing from the prone position, calculate the angle to which the barrel of the rifle should be raised to hit the centre of the target (disregard any elevation of the rifle due to the angle)
(Just for you iBibah)
ANYONE FOR A HARD MATHS QUESTION?!?!
A sniper is lying in a prone position such that the barrel of his rifle is 30cm above the ground. The muzzle velocity of his rifle is 800ms-1.
A target appears at a distance of 1250m with the centre of the target 1.2m above the ground level. If the sniper was firing from the prone position, calculate the angle to which the barrel of the rifle should be raised to hit the centre of the target (disregard any elevation of the rifle due to the angle)
(Just for you iBibah)
superSAIyan2
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re: HSC Physics Marathon Archive
lol i got 0degrees and 35minutes and 89degrees 27minutes
lol i got 0degrees and 35minutes and 89degrees 27minutes
Fizzy_Cyst
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re: HSC Physics Marathon Archive
Well done again, young padawan
Well done again, young padawan
Fizzy_Cyst
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re: HSC Physics Marathon Archive
(GIVE THEM TIME SUPERSAIYAN!!)
?HARD? CONCEPTUAL MATHS QUESTION
A projectile is launched from the surface of planet habibi (pronounced kkkkkkkkhabeebee), at t = 3s and t = 14s, the vertical displacement is 60m.
Determine the acceleration due to gravity on habibi and the maximum height of the projectile
ONLY USE PHYSICS EQUATIONS!!!!
YALLA!
(GIVE THEM TIME SUPERSAIYAN!!)
?HARD? CONCEPTUAL MATHS QUESTION
A projectile is launched from the surface of planet habibi (pronounced kkkkkkkkhabeebee), at t = 3s and t = 14s, the vertical displacement is 60m.
Determine the acceleration due to gravity on habibi and the maximum height of the projectile
ONLY USE PHYSICS EQUATIONS!!!!
YALLA!
Last edited:
superSAIyan2
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re: HSC Physics Marathon Archive
i wont post my working yet. But is the answer: acceleration is -4.8m/s/s and max height 173.4m
i wont post my working yet. But is the answer: acceleration is -4.8m/s/s and max height 173.4m
superSAIyan2
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re: HSC Physics Marathon Archive
^LOL
^LOL
re: HSC Physics Marathon Archive
cheeky knts talk shit get negged
Dont talk about Siddy like that!
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