If you are in an elevator that speed up then the apparent weight is No apparent weight

Fg+Fnet

Fg-Fnet

Answer and I will give you brainiliest

Fnet - Fg

Explanation:

When an object is in an elevator, its weight varies with respect to the direction of movement of the elevator and the elevators acceleration.

The weight, W, of an object can be expressed as;

W = mg

where m is the object's mass, and g is the acceleration due gravity.

If the object is in an elevator that speed up, an apparent weight would be felt since both mass and elevator are moving against gravitational pull of the earth.

So that,

= mg + ma

where: mg is the weight of the object, and ma is the apparent weight.

Apparent weight (ma) = - mg

b) phosphorus pentoxide

f is prop to m1xm2 double m1 double force