Question

Это сор, помогите пожалуйста 5. Из рисунка видно, что капля воды под действием силы тяжести направлена вниз.Если расстояние между листом и Землей равно 15 м, определите работу, совершаемую силой тяжести, действующей на каплю воды массой 20 мг. падение с листа. ​

Answer 1

Ответ: 2,25*10⁻³Дж

Объяснение:

Дано:

h=15м

m=15мг=0,000015кг

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А-?

A=Fh=mgh=0,000015*10*15=2,25*10⁻³Дж

Answer 2

Calculating the Work Done by Gravity on a Water Droplet

To calculate the work done by gravity on a water droplet falling from a leaf, we can use the formula:

Work = Force × Distance

Where: - Force is the force of gravity acting on the water droplet. - Distance is the distance the water droplet falls.

Given: - Mass of the water droplet (m) = 20 mg - Distance between the leaf and the ground = 15 m

Calculating the Force of Gravity

The force of gravity acting on the water droplet can be calculated using the formula:

Force = Mass × Acceleration due to gravity

The acceleration due to gravity on Earth is approximately 9.81 m/s^2.

Let's calculate the force of gravity acting on the water droplet.

Force = 20 mg × 9.81 m/s^2

Using the given mass of the water droplet (20 mg), we can calculate the force of gravity.

Work Done by Gravity

Now that we have the force of gravity, we can calculate the work done by gravity on the water droplet as it falls from the leaf.

Work = Force × Distance

Substitute the values we have: Work = (20 mg × 9.81 m/s^2) × 15 m

Let's calculate the work done by gravity on the water droplet.

Calculation

The work done by gravity on the water droplet falling from the leaf is: Work = (20 mg × 9.81 m/s^2) × 15 m

This calculation will give us the work done by gravity on the water droplet.