Question

Its science number 6 to 10

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Answer 1

Hey there!

As per questions,

☆ A feather and a coin fall at the same time, which statement is correct?

Ans:- The feather will meet greater air resistance

☆ What is the weight of a 5-kilogram baby in Newton (N)?

Ans:- 49 N

Steps - As 1 kg = 9.8 N, so 5kg baby = 5×9.8 => 49 N

☆ The force that Earth exerts on any object is

Ans:- attraction

☆ Two objects move toward each other because of gravitational attraction. As the objects get closer and closer, the force between them

Ans:- increases

☆ Suppose the gravitational force between two masses is 10 N. If the distance between the masses is cut in half, what is the force between the masses?

Ans:- 40N

Steps- Gravitational force is 10N

Distance is cut in half

Now using the formula,

`F = G (m^(1)m^(2) )/(r^(2) )`

As you see the distance between the masses is the denominator squared.

This means that if we reduce the distance by half, then the force will increase by a multiple of
`{2}^(2) = 4`.

`F = 4 * 10N\\ = > F = 40N`

~ Benjemin360