Which describes bonding electrons in a polar covalent bond?

Electrons that are not shared equally

Polar covalent bonding is a type of chemicalbond where a pair of electrons is unequally shared between two atoms. In a polar covalent bond, the electrons are not equally shared because one atom spends more time with the electrons than the other atom.

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PART a)

As we know that weight is product of mass and gravity

so here we have

Part B)

Normal force is counter balanced by weight of the crate

so here we have

N = W = 127.4 N

PART C)

As we know that

F = ma

now we have

m = 13 kg

F = 40 N

now we have

Part D)

Maximum static friction force is given as

here we know that

now we have

PART E)

Since applied force on the block is

F = 12 N

Now since applied force is less than maximum static friction force

So it will not slide

So here friction force will be same as applied force

Static friction = 12 N

PART f)

Kinetic friction force is given as

here we know that

now friction force is

now we have

Part g)

as we know that

F = ma