Homework Statement
suppose a bar magnet is brought near a magnetic needle in a way that does not disturb the latter's position in the magnetic meridian. What can be said concerning the direction of the field due to the magnet?
2. Would reversing the position of the magnet has any effects on...
Homework Statement
A storage tank contains 29.5 kg of N2 at a pressure of 3.87. What will thep ressure be if the N2 is replaced with an equal mass of CO2
Homework Equations
PV=nRT
PV=NKT
PV=nNkT
The Attempt at a Solution
I know CO2 mass is going to be 25kg.
Another one...
What is the relationship between the mass and velocity of a whirling object? base of graph relationship
What is the relationship between the radius of revolution and the velocity of a whirling object?
What is the relationship between the velocity of a whirling object and the centripetal...
Homework Statement
A 0.200-kg mass is attached of a 0.800 m length string to form a pendulum. The pendulum is released from a horizontal position. At the bottom of its swing, it collides elastically with a 0.400-kg mass which is at rest on a horizontal, frictionless v surface. Find the...
the acceleration should be gravity? so 9.8m/s^2 but I don't know what's the accelerated motion formula.
umm. I took square root of (9.8x44x2) and got 29.36s but that's not right, the answer my teacher gave was 2.98s... can't figure out what I did wrong.
Homework Statement
An 80kg diver falls from a board into water 44m below the water.
A)I found the potential energy of the diver on the board is 34496
B)kinetic energy as he stirkes the water=34496
C)I can figure out "how long does it take the diver to strike the water"
Homework...