Could any object have zero mass?
12847
If photons have no mass, how can they have momentum?
22057
Is it possible for something to have no cause?
134220
Is entropy of all systems zero at absolute zero?
2757
Would you be weightless at the center of the Earth?
71357
Does the mass of an object change as it moves away from the earth?
51589
Can virtual particle have mass?
1613
Is temperature in vacuum zero?
6384
Will an object always fall at an infinite speed in a black hole?
64664
Will an object resting on a rotating platform move in a frictionless world?
6845
What if we could give photons some mass?
47638
Mass and Newton's Second Law
119217
If particles are points, then aren't atoms empty space?
152940
There is no such thing as magnetism?
16877
Is there anything smaller than a quark?
52445
How can I determine whether the mass of an object is evenly distributed?
46744
Can a massless rope accelerate?
15338
Why is the centre of mass displaced even when external force is 0?