Aball is dropped from the top of a building. the gravitational force is 10 n down, and the force of air resistance is 1 n up. what is the net force? 9 n up 9 n down 11 n up 11 n down

The net force on the object is 9N down.

The given parameters;

gravitational force, Fg = 10 N

force of air resistance, Fr = 1 N

The net force on an object is defined as the change in the total force on the object.

Assuming the downward motion = positive direction

the downward motion = air resistance = negative direction

The net force on the object is calculated as follows;

Thus, the net force on the object is 9N down.

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Net force, F' = 9 N (down)

Explanation:

It is given that, a ball is dropped from the top of a building.

The gravitational force acting on the ball, F = 10 N (down)

The air resistance acting on the ball, f = 1 N (up)

We need to find the magnitude of net force acting on the ball. The net force is given by :

F' = 9 N

So, the net force acting on the ball is 9 N in downward direction. Hence, this is the required solution.                            

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.