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Tems11 [23]
2 years ago
8

Explain in term of forces, why duck is floating on the water

Physics
1 answer:
musickatia [10]2 years ago
3 0

Answer:

The duck floats on water because his/her density is less than the density of water

Explanation:

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What is the magnification of an astronomical telescope whose objective lens has a focal length of 71 cm and whose eyepiece has a
Rus_ich [418]

To solve this problem it is necessary to apply the concepts related to optical magnification (is the process of enlarging the apparent size, not physical size, of something.). Specifically the angular magnification of an optical telescope is given by

M = -\frac{f_o}{f_e}

Where,

f_o = Focal length of the objective lens in a refractor

f_e = Focal length of the eyepiece

Our values are given as

f_o = 71cm

f_e =  2.1cm

Replacing we have

M = -\frac{f_o}{f_e}

M = -\frac{71}{2.1}

M = - 33.81

Therefore the magnification of this astronomical telescope is -33.81

7 0
3 years ago
Which of the following occurs first in the generation of an action potential?
spayn [35]
It seems that you have missed the necessary options for us to answer this question so I had to look for it. Anyway, here is the answer. The one that occurs first in the generation of an action potential is that t<span>he membrane depolarizes. Hope this answers your question. Have a great day!</span>
7 0
3 years ago
Cocaine, which is derived from the coca leaf, is grown mostly in Colombia and its neighboring countries while heroin, which is d
nevsk [136]

Answer:

Because of the location, humidity and temperatures.

Explanation:

Coca is grown in humid and very humid subtropical forests, called yungas and

they form the lower floor of the upper Jungle, in the Central Andes, mostly in Peru and Bolivia. The  yungas are in contact with the rainforests of the lowlands in Amazonia, where it has been  started to expand coca cultivation recently (Dourojeanni, 1988). The optimum altitude is 1000 a  2000 meters (where cocaine content is higher), with optimal annual average precipitation, is 2000 meters  mm, but it is grown between 700 and 2000 msnm and with an average annual rainfall of 1000 to 4200 mm.

msnm = meters above sea level

6 0
3 years ago
Abnormal protrusion of the eye out of the orbit is known as
kifflom [539]

Answer:

Exophthalmos

Explanation:

Exophthalmos is a disorder which can be either bilateral or unilateral. Sometimes it is also known by other names like Exophthalmus, Excophthamia, Exobitism.

It is basically the bulging of eye anterior out of orbit which if left unattended may result in eye openings even while sleeping consequently resulting in comeal dryness and damage which ultimately may lead to blindness.

It is commonly caused by trauma or swelling of eye surrounding tissues resulting from trauma.

7 0
3 years ago
you are carrying a stack of boxes across the room. when you come to a sudden stop, some of the boxes fall forward off of the top
NemiM [27]
This is the law of inertia.
5 0
3 years ago
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