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3 years ago

Describe the main energy transformations that occur when an apple falls from a tree?

Physics

1 answer:

blondinia [14]3 years ago

7 0

Answer:

Kinetic energy

Explanation:

When an apple falls from a tree it has to do with the energy from gravity. Gravity energy turns into kinetic energy once its in motion.

Sorry if im wrong

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Temka [501]

Answer:

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3 years ago

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3 years ago

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Oil having a density of 926 kg/m3 floats on water. A rectangular block of wood 3.69 cm high and with a density of 974 kg/m3 floa

zloy xaker [14]

Answer:

the position of the wood below the interface of the two liquids is 2.39 cm.

Explanation:

Given;

density of oil, $\rho _o$ = 926 kg/m³

density of the wood, $\rho _{wood}$ = 974 kg/m³

density of water, $\rho _w$ = 1000 kg/m³

height of the wood, h = 3.69 cm

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let the position of the wood below the interface of the two liquids = x

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$F_{wood} - F_{oil} - F_{water} = 0\\\\\rho _{wood} .gh - \rho _o .g(h-x) - \rho_w .gx = 0\\\\\rho _{wood} .h - \rho _o (h-x) - \rho_w .x = 0\\\\\rho _{wood} .h -\rho _o h + \rho _o x - \rho_w .x =0\\\\h (\rho _{wood} -\rho _o ) = x( \rho_w - \rho _o)\\\\x =h[\frac{ \rho _{wood} -\rho _o }{\rho_w - \rho _o} ]\\\\x = 3.69\ cm \times [\frac{974 - 926}{1000-926} ]\\\\x = 2.39 \ cm$

Therefore, the position of the wood below the interface of the two liquids is 2.39 cm.

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3 years ago

An 18kg block moving at 6 m/s has kinetic energy of

sergey [27]

½ × 18 × 6² = 324 J

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Why is a spectrum of colors produced when white light passes through a prism?

shutvik [7]

Answer:

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2 years ago

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Describe the main energy transformations that occur when an apple falls from a tree? ​

Describe the main energy transformations that occur when an apple falls from a tree?