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Finger [1]
3 years ago
11

Join my me et.gogle .etj-dovn-kds​

Physics
1 answer:
vfiekz [6]3 years ago
5 0
Sweet, Hold On I just need to download le app

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The technological challenges of installing cellphones across the globe
Leona [35]

Answer:

I don't know sorry For this question

3 0
3 years ago
Hair color is a trait that’s controlled by many genes working together. Each gene contributes to this trait only in a small prop
Anna35 [415]
The correct answer should be polygenic inheritance

Most genes that affect the way a human being looks have been inherited in this way. Not only hair but also things like height and weight, eye color, and similar.
5 0
4 years ago
Read 2 more answers
The star Vega has an apparent visual magnitude of 0.03, and the star HR 4374 has an apparent visual magnitude of 4.87. It has be
laila [671]

Answer:

(D) Vega must produce more energy than HR 4374.

Explanation:

The apparent visual magnitude is defined as the luminosity of a star seen from earth. The Greek astronomer Hipparcos was the first who invent a numerical scale to describe how bright a star appear to be in the sky to the naked eye, so he gave an apparent magnitude of 6 to the faintest star in the sky and an apparent magnitude of 1 to the brigthest one. Since the arrive of the telescope era this range was expanded to negative numbers for the most luminous one.

The human eye has a logaritmical response to the luminosity of stars, so as an example, if one star has an apparent magnitude of 6 and another one has an apparent magnitude of 1, the second one will be 100 times brigther than the first one. In the other hand, for a star that has apparent magnitude of 1 it will appear to be 2.512 times brigther than a star with apparent magnitude of 2.

The apparent magnitude of a star can variate as a consecuence of the distance from earth or for its energy production.

With all these facts clear enough described above, it is easier to conclude that as the two star are at the same distance the apparent visual magnitude will depend in the energy production. In the case of Vega it has an apparent visual magnitude of 0.03, while HR 4374 has an apparent visual magnitude of 4.87. According with the scale stablished for Hipparcos, Vega will be more luminous than HR 4374. This means that Vega produce more energy than HR 4374.

8 0
3 years ago
A force vector has a magnitude of 599 newtons and points at an angle of 40.8° below the positive x axis. What is the x scalar co
ASHA 777 [7]

Answer:

F_{x}=453.44N

Explanation:

Given data

Force F=599 N

Angle α=40.8°

To find

x scalar component

Solution

The Scalar x component can be found by

F_{x}=FCos\alpha  \\F_{x}=599Cos(40.8)\\F_{x}=453.44N

The Scalar y component can be found by

F_{y}=-FSin\alpha  \\F_{y}=-599Sin(40.8)\\F_{y}=-391.4N

3 0
3 years ago
A 500-kg roller coaster car travels with some initial velocity along a track that is 5 m above the ground. The car goes down a s
LUCKY_DIMON [66]

Answer:

12m/s

Explanation:

4 0
3 years ago
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