Ice floats in water at 0°c. why is this an example of physical equilibrium?

Hello!

This is the best answer i could possibly think of i hope it helps you out!

As the water cools freezes into ice, it becomes less dense. On the other hand, most substances are most dense in their solid state than in their liquid state. For an object to be able to float, it has to displace a weight of fluid equal to its own weight. The heavier water displaces the lighter ice, so ice floats to the top.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

f is prop to m1xm2 double m1 double force