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UNO [17]
3 years ago
15

Question:How many joules of gravitational potential energy are stored in an object that has a mass of 8.5 kilograms and is held

2 meters above the surface of earth?
Mathematics
1 answer:
Ivenika [448]3 years ago
8 0

Answer:

166.6 joules

Step-by-step explanation:

The formular for potential energy is Mgh

Mass is 8.5 kg

g = acceleration due to gravity (9.8)

height is 2 meters

= 8.5 × 9.8 × 2

= 166.6 joules

Hence the potential energy is 166.6 joules

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             + 1         + 1
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        ⁻⁵/₆x + y = ⁵/₆x - ⁵/₆x - 2¹/₃
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3 years ago
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0.3(3a-4)-0.05(8a)(-7a)
Anit [1.1K]

Answer:

2.8a²+0.9a - 1.2

Step-by-step explanation:

Given the expression 0.3(3a-4)-0.05(8a)(-7a)

Expand using the distributive law

0.3(3a-4)-0.05(8a)(-7a)

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0.9a - 1.2 + 2.8a²

Rearrange

2.8a²+0.9a - 1.2

Hence the required expression is 2.8a²+0.9a - 1.2

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What's the question?
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Step-by-step explanation: hope it helps

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