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geniusboy [140]
3 years ago
10

What is constant of a spring if there is 150 j when stretched 0.25 m?

Physics
1 answer:
Zarrin [17]3 years ago
3 0
0.45 This is the wrong answer
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Addition of _____________ to pure water causes the least increase in conductivity. A) weak bases B) acetic acid C) ionic compoun
geniusboy [140]

Answer:

D

Explanation:

Water in itself is a bad conductor of electricity. Any compound that dissociates in water into ions and charged molecules, will increase conductivity of water. In this case ionic compounds weak basis and acids will put in free ions into the water. The ions can pass electricity because they are attracted to respective poles of electricity depending on their charges. In water, these ions are free moving unlike when they are immobilized in their lattice in solid form.

Organic compounds are mainly made of covalent bonds (around carbon) hence do not dissociate in water.

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3 0
3 years ago
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What variable can affect the amount of fruit produced by an apple tree
stich3 [128]
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3 years ago
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According to the definition of mechanical work, pushing on a rock accomplishes no work unless there is
LekaFEV [45]
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3 years ago
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In a device like the one shown below, the cylinder is allowed to fall a distance of 300 m. As a result, the temperature of the w
Delvig [45]

Answer:

Increase in the temperature of water would be 0.9 degree C

Explanation:

As we know by energy conservation

Change in the gravitational potential energy of the cylinder = increase in the thermal energy of the water

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U = mgh

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h = 300 m

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Mc\Delta T' = (m \times 9.8 \times 100)

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8 0
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