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Komok [63]
3 years ago
10

Which element is stable and nonreactive?

Physics
1 answer:
const2013 [10]3 years ago
6 0
The answer is D. Krypton (kr)
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A quantity y is to be determined from the equation y=(px)/q^2
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Answer:

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Explanation:

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4 0
2 years ago
An elevator of massmis initially at rest onthe first floor of a building. It moves upward,and passes the second and third floors
Varvara68 [4.7K]

To solve this problem it is necessary to apply the concepts of Work. Work is understood as the force applied to travel a determined distance, in this case the height. The force in turn can be expressed by Newton's second law as the ratio between mass and gravity, as well

W = mgh

Where,

m = mass

h = height

g = Gravitational constant

When it ascends to the second floor it has traveled the energy necessary to climb a height, under this logic, until the 4 floor has traveled 3 times the height h of each of the floors therefore

h = 3h

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7 0
3 years ago
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Sati [7]
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3 years ago
What is the amount of the force accelerate a 20kg object at a rate of 5m/s
Anni [7]

Answer:

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6 0
2 years ago
How many butter, which has a usable energy content of 6.0 Cal/g (= 6000 cal/g), would be equivalent to the change in gravitation
Mazyrski [523]

Answer:

175.96 g

Explanation:

Potential energy required for the man to climb 7.07 km = m g h.

= 64 x 9.8 x 7070

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= 1.0557 x 10⁶ cals

= 1.0557 x 10⁶ / 6000 g of butter

= 175.96 g of butter.

3 0
2 years ago
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