Physics: Post your doubts here!

[queen of the legend]

uhum why?

you minus them up because they are acting in different direction. so one negative is for direction and one is for the velocity. you can either think of it this way or you can use this better way for perfectly elastic collisions only where this equation applies
Ua-Ub= - (Va-Vb)

 

[champ-student]

you minus them up because they are acting in different direction. so one negative is for direction and one is for the velocity. well i am not really sure about my concept of this you better ask your physics teacher

OMG!!!!!!!! so simple..........!!!!!!!
thankzzz a lot................

 

[champ-student]

whats ans for ques 2???

 

[champ-student]

anyone there????????

 

[champ-student]

Which of these terms means the turning effect of a force?
a. Pivot
b. Lever
c. Momentum
d. Moment

 

[champ-student]

Which of the following is a renewable energy resource?
a. Natural gas
b. Wind
c. Nuclear fuel
d. Oil

 

[champ-student]

what is terminal velocity

 

[Silent Hunter]

Which of these terms means the turning effect of a force?
a. Pivot
b. Lever
c. Momentum
d. Moment

moment

Which of the following is a renewable energy resource?
a. Natural gas
b. Wind
c. Nuclear fuel
d. Oil

wind

what is terminal velocity

the constant velocity where the air resistance and weight are equall

 

[champ-student]

moment



wind



the constant velocity where the air resistance and weight are equall

thankx

 

[champ-student]

i m giving physics paper first time.....can anyone tell what is ATP?????

 

[champ-student]

A force is required to maintain the circular motion.
(i) Explain why a force is required.

 

[champ-student]

A plumber measures, as accurately as possible, the length and internal diameter of a straight
copper pipe.
The length is approximately 80cm and the internal diameter is approximately 2cm.
What is the best combination of instruments for the plumber to use?
internal diameter length
A rule rule
B rule tape
C vernier calipers rule
D vernier calipers tape

 

[nightrider1993]

i m giving physics paper first time.....can anyone tell what is ATP?????

Alternate to practical

 

[Asheeta]

A force is required to maintain the circular motion.
(i) Explain why a force is required.

so that the body does not fall towards the centre and it remains in an orbit

 

[Asheeta]

A plumber measures, as accurately as possible, the length and internal diameter of a straight
copper pipe.
The length is approximately 80cm and the internal diameter is approximately 2cm.
What is the best combination of instruments for the plumber to use?
internal diameter length
A rule rule
B rule tape
C vernier calipers rule
D vernier calipers tape

c. Vernier calipers rule

 

[Asheeta]

there are no specific quantities that should be learnt as i have been told ....i think you just have to guess them and i think its just stupid

good for u then thx anyways :/

 

[AAAAAA]

so that the body does not fall towards the centre and it remains in an orbit

The body would not fall towards the centre but move off along a tangential path

 

[geek101]

can someone please post the 2012 paper 2 and 1?? thnx

 

[queen of the legend]

Anyone having problem in vectors or any other relative topic of physics can refer to this website:

http://www.physicsclassroom.com/Class/vectors/u3l1a.cfm

its quite helpful for clearing up concepts

 

[queen of the legend]

Re: Physics Help here! Stuck somewhere?? Ask here!

Can anyone tell me what should i learn for pressure in lquids for As level and please give me the detailed explanation of viscosity in liquids asap !!! thanks

If you are attending oct/nov exam for physics go throught the syllabus and study according to learning outcomes

besides you can check wether you should study pressure and upthrust !