2 years ago

A stone of mass 250 g is located at a height of 20 m calculate the potential energy of the stone?

Physics

1 answer:

irina1246 [14]2 years ago

6 0

Answer:

50J

Explanation:

Potential energy = mass (kg) * gravitational accelerations (10N on earth) * height

250 g in kg = 0.25

0.25 * 10 * 20 = 50 J

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Around 2.8212 sec

Explanation:

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2 years ago

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3 years ago

Ali mixes 20g of Sodium Chloride in 100g of water at 15 Degree °C. Calculate the mass of the solution

Lera25 [3.4K]

Answer:

The mass of the solution is 120 g.

Explanation:

The mass of the solution is given by:

$m_{sol} = m_{1} + m_{2}$

Where:

$m_{sol}$ : is the mass of the solution

$m_{1}$ : is the mass of the solvent

$m_{2}$ : is the mass of the solute

In the solution, the solvent is the majority compound (in mass) and the solute is the minority (in mass), so the solvent is the water and the solute is sodium chloride.

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I hope it helps you!

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