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1 year ago

What is Archimedes principal ?

1 answer:

6 0

The Archimedes principle is a principle that is expressed as a law that states that a body immersed in a fluid, whether fully or partially, is subject to an upward force of the same magnitude as the weight of the fluid it displaces.

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A contact force exists between two interacting objects that physically contact each other. a non-contact force exists when two i

Murrr4er [49]

True.

A contact force is a force between two objects that are physically in contact with each other: an example of a contact force is the normal reaction of a table supporting a book.

A non-contact force is a force between two objects that are not physically in contact with each other: an example of non-contact force is the gravitational attraction between the Earth and the Moon.

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2 years ago

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Question 2:

Vesna [10]

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3 years ago

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A 5.75 × 107 kg battle ship originally at rest fires a 1100-kg artillery shell horizontally with a velocity of 550 m/s. show ans

prohojiy [21]

Answer:

-0.01052 m/s

Explanation:

M = mass of ship = $5.75\times 10^7\ kg$

m = mass of shell = 1100 kg

v = velocity of shell = 550 m/s

u = recoil velocity of ship

As linear momentum is conserved

$(M - m)u=-mv\\\Rightarrow u=-\frac{mv}{M - m}\\\Rightarrow u=-\frac{1100\times 550}{5.75\times 10^7+1100}\\\Rightarrow u=-0.01052\ m/s$

The recoil velocity of the ship taking the firing direction to be the positive direction is -0.01052 m/s

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3 years ago

Where is this earthquake's epicenter?

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The correct answer is C

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3 years ago

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What sequence shows electromagnetic waves arranged from shorter to longer wavelengths ?

timama [110]

so from what i was looking at i think the answer is d because The shorter the wavelength, the higher measure of vitality it produces.So the request is D. Bright beams, Visible light, Infrared, and Microwaves.

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3 years ago

What is Archimedes principal ?​

What is Archimedes principal ?