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3 years ago

The great contribution of nicholas copernicus was to

Physics

1 answer:

DIA [1.3K]3 years ago

6 0

publish a book in which he explained his heliocentric theory.

Explanation:

The heliocentric theory is the one according which the Sun is in the center of our Solar Sistem and the planets go around it.

Previously to this theory (before Copernicus) the prevalent theory was geocentrism accordind which it was the earth who stood in the center and all the other celestial bodies went around it.

:-)

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Reflection of the images example

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Answer:

reflection of water ,sound and water waves etc

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3 years ago

A centrifuge in a forensics laboratory rotates at an angular speed of 3,700 rev/min. When switched off, it rotates 46.0 times be

ra1l [238]

Answer:

Explanation:

Given,

initial angular speed, ω = 3,700 rev/min

= $3700\times \dfrac{2\pi}{60}=387.27\ rad/s$

final angular speed = 0 rad/s

Number of time it rotates= 46 times

angular displacement, θ = 2π x 46 = 92 π

Angular acceleration

$\alpha = \dfrac{\omega_f^2 - \omega^2}{2\theta}$

$\alpha = \dfrac{0 - 387.27^2}{2\times 92\ pi}$

$\alpha = -259.28 rad/s^2$

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2 years ago

A photon with a wavelength of 2.29 × 10^–7 meter strikes a mercury atom in the ground state.

4vir4ik [10]

The photon can be absorbed and the energy of the photon is exactly equal to the energy-level difference between the ground state and the level d.

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2 years ago

Which best describes the law of conservation of mass?

Sergio039 [100]

Explanation:

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

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2 years ago

***FIRST CORRECT ANSWER GETS A BRAINLIEST***

melomori [17]

Answer:

Explanation: It is halved

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2 years ago

Read 2 more answers