Hello,
I'm reading a book about a gas volume inside a system. It says that when the volume expands due to the heated gas, the system is doing work. I understand that part. But it says that the value for work is negative because the system is doing work.
From all the physics I have been...
Is this scenario referring to objects that do not have the same volume?
Basically what I'm saying: if they have the same volume then they necessarily displace the same liquid volume. Is this statement correct?
Hello,
This is bugging me so I'd appreciate any help.
I have two objects made from the same material with the same mass.
The base of Object 2 is 3 times that of Object 1. If I place the objects base first in a liquid, why is the buoyant force on them equal?
What here is what I'm...
Thanks a lot.
I never knew there were so many forces.
the weight of the car due to gravity (downwards)
>> This would be the weight, correct?
the reaction force from the car related to centrpetal acceleration of the car (outwards)
>> isn't this force the centrifugal force and thus is a...
Hello,
From what I understand a car negotiating a banked cruve of angle \theta at a speed V0 does not experience a force of friction.
But if the car goes to a speed higher than V0, then friction acts in the direction of the cruve. i.e. inwards
And if the car goes at a speed lower than V0...