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Alborosie
3 years ago
9

What is Archimedes' Principle?

Physics
1 answer:
faltersainse [42]3 years ago
6 0
Archimedes' Principle is a law of physics related to the the ability of an object to float. This is a physical law related to the ability of an object to float that states that any object fully or partially submerged in water and at rest is acted upon in an upward direction, by a force whose magnitude is equal to the weight of the object. Since this force works in the opposite direction, the body/object neither sinks nor rises. If the sunk object displaces as much water as its weight, it does not sink but floats. The best example to explain this law is the ship in the ocean. When the ship enters the ocean, it begins to sink until it has displaced the same amount of ayer which is equal to its own weight, after which it starts to float.
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Please explain in simple terms why a purple flower appears purple when a white light shines on it?
AleksAgata [21]
The white light is made up of all wavelength of electromagnetic spectrum, the spectrum has different colors, When light rays fall on an object, some of the color in the white light will be absorbed by the object while some will be reflected. The color that is reflected by the object is the one that an observe will see. Thus, a purple flower will appear purple because it is reflecting the wavelength that appear as purple 
6 0
3 years ago
In order to waken a sleeping child, the volume on an alarm clock is doubled. Under this new scenario, how much more energy will
Kamila [148]

Answer:4 times more energy will be striking the childbearing

Explanation:

Because Volume is directly proportional to amplitude of sound. Energy is proportional to amplitude squared. If you triple the amplitude, you multiply the energy by 4

5 0
3 years ago
What is the advantage of having different shaped beaks? Question 4 options: To protect itself against prey. To be able to eat th
Pavlova-9 [17]

Answer:

To be able to eat the food readily available in the environment

3 0
3 years ago
If 3,600 J of work is done in 3.0 s, what is the power?
Firlakuza [10]

Answer:

1,200 watts

Explanation:

1 watt = 1 Joule (J) of work / second

So, 3600 Joules of work / 3 seconds is:

3600 J / 3 seconds = 1,200 watts

8 0
3 years ago
An Earth satellite is orbiting at a distance from the Earth's surface equal to one Earth radius (4 000 miles). At this location,
Taya2010 [7]

Answer:0.25 times

Explanation:

Given

Distance of satellite from earth surface=Radius of earth

Force on the satellite is F=mg'

where g'=acceleration due to gravity at that point

Distance from center of Earth=R+R=2R

Gravitational Force is given by

F=\frac{GM_1M_2}{r^2}

Force F=mg'=\frac{GMm}{4R^2}-----1

Force on earth surface F=mg=\frac{GMm}{R^2}------2

Divide 1 and 2 we get

\frac{g'}{g}=\frac{R^2}{4R^2}

g'=\frac{g}{4}  

7 0
3 years ago
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