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SVETLANKA909090 [29]
3 years ago
15

An aircraft is taking a group of skydivers up into the air. Evan is dressed in

Chemistry
1 answer:
meriva3 years ago
7 0

4,410 kJ

Explanation:

Gravitational Potential Enegry (GPE) is calculated as;

GPE = <em>m*g*h</em>                           where;

m = mass (kg)

g = gravity (m/s²)

h = height (meters)

= 90 * 9.8 * 5000

= 4,410,000‬ joules

= 4,410 kJ

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Answer:

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2 years ago
The molar ratio of HPO42- to H2PO4- in a solution is 1.4. Calculate the pH of the solution. Phosphoric acid (H3PO4) is a triprot
Bezzdna [24]

Given is the ratio of conjugate base and conjugate acid of phosphoric acid. pH of a substance is the concentration of the hydrogen ions in its solution and higher this concentration lower is the value of pH.

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3 years ago
How many grams of argon would it take to fill a large light bulb with a volume of 0.745 L at STP?
EastWind [94]

Answer:

Mass = 1.33 g

Explanation:

Given data:

Mass of argon required = ?

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We will calculate the number of moles of argon first.

Formula:

PV = nRT

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1 atm ×0.745 L = n × 0.0821 atm.L/mol.K× 273.15 K

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n = 0.745 atm. L / 22.43 atm.L/mol

n = 0.0332 mol

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Mass = 0.0332 mol × 39.95 g/mol

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2 years ago
What can create sediment
bearhunter [10]
Sediment is created by wind and water.

4 0
3 years ago
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What is a free body diagram? what is it used for?
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