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4 years ago

When water falls through a dam and turns a turbine connected

Physics

1 answer:

weqwewe [10]4 years ago

7 0

Answer:

The energy transformations that occur is Mechanical → electrical → light.

Explanation:

When the water falls through the dam the gravitational potential energy of water is transformed into kinetic energy.
This energy rotates the turbine (mechanical energy) connected to a generator.
Now this mechanical energy is converted into electrical form through the process of electromagnetic induction (when a conductor cuts the magnetic field, electricity is produced).
The electricity thus produced is driven to different offices and houses through wires.
By drawing this current we light our homes and offices.

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A piece of charcoal used for cooking is found at the remains of an ancient campsite. A 1.09 kg sample of carbon from the wood ha

fgiga [73]

Answer:

t = 17199 years

Explanation:

given,

mass of sample = 1.09 Kg

Activity of living material = 15 decays / min /g

Activity of living material = 15 x 1000 decays /min /kg

Activity of living material per 1.09 kg A = 1.09 x 15 x 1000 decays / min

Activity of after time t is A ' = 2020

half life = 57300 years

desegregation constant

λ = 0.693 / 5700

$A'= A e^{-\lambda\ t}$

$A'= 1.09 \times 15 \times 1000 e^{-\lambda\ t}$

$2020= 1.09 \times 15 \times 1000 e^{-\dfrac{0.693}{5700}\times t}$

$0.124=e^{-\dfrac{0.693}{5700}\times t}$

taking ln both side

$\dfrac{0.693}{5700}\times t = 2.09$

t = 17199 years

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3 years ago

Under which conditions are particles in a medium said to be in phase with one another?

rewona [7]

Answer:

Corvette Corvette

Explanation:

teehee

The answer is A btw :)

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3 years ago

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oee [108]

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Two movers are pushing a large crate with a force of 60.0 n each. one pushes north, the other east. what is the equilibrant forc

romanna [79]

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dalvyx [7]

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