Answer:
185 A
Explanation:
In order for the rod to float above the ground, the magnetic force between the two rods must be equal to the weight of the floating rod.
So we can write:
where the term on the left is the magnetic force and the term on the right is the weight, and where:
is the vacuum permeability
is the current in the two rods (they carry the same current)
is the length of the floating rod
r is the distance between the rods
is the mass of the floating rod
g is the acceleration due to gravity
Here we have:
Therefore, solving for I, we find:
Hello.
The answer is
1 N/m2 = 0.020885 lbf/ft2; 1 lbf/ft2 = 47.880172 N/m2
Have a nice day
Answer:
Part a)
v = 0.0105 m/s
Part b)
Explanation:
As per momentum conservation we know that
here we know
Part a)
now from above expression we can say
Part b)
Now increase in the internal energy of the system
Answer:
- Cool, dense air begins to sink downward.
- A high-pressure system forms.
- Pressure differences cause wind to blow outward.
- The skies clear, making way for pleasant weather.
Explanation:
The air near the land warms up and rises. Cool dense air sinks being heavier. This creates a pressure difference. A high pressure system forms. This difference leads to blowing of wind from High pressure to low pressure area. Eventually sky gets clear and we experience pleasant weather. Hence, the correct order to describe this is:
- Cool, dense air begins to sink downward.
- A high-pressure system forms.
- Pressure differences cause wind to blow outward.
- The skies clear, making way for pleasant weather.
Answer:
Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.
Explanation: