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Idonknow
  • Member for 8 years, 1 month
  • Last seen more than 2 years ago
  • Singapore
21 votes
3 answers
14k views

Why is the period of rotation the same for two stars orbiting the same centre?

3 votes
1 answer
2k views

Does angle of inclination between slide and the floor affect speed at the bottom? [closed]

3 votes
1 answer
4k views

Why decrease in velocity will increase pressure?

3 votes
6 answers
2k views

Why center of mass (COM) formula is $m_1 r_1 = m_2 r_2$ for a two-particles system?

2 votes
3 answers
135 views

How $4$ forces achieve equilibrium? [closed]

2 votes
7 answers
4k views

Why isn't kinetic energy conserved during an elastic collision between two particles?

1 vote
1 answer
772 views

Calculate the gravitational force between two stars having common centre

1 vote
2 answers
315 views

When calculating Percentage Uncertainty, do we need to make our interested variable as subject?

1 vote
1 answer
390 views

When two objects of different masses do not exchange heat between them and surrounding, which object will have higher tempeature

1 vote
1 answer
2k views

How to calculate striking speed of a meteor?

0 votes
1 answer
1k views

Calculate the height at which the two balls meet [closed]

0 votes
1 answer
4k views

If two stars of mass $M$ and $2M$ move about their common centre of mass, then they have same angular velocity [duplicate]

0 votes
0 answers
535 views

How to calculate torque on a satellite?