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Aleks [24]
3 years ago
12

How much of the universe do scientists speculate is composed of dark energy

Physics
1 answer:
algol [13]3 years ago
5 0

Answer: Approximately 65% from what i have learnt.

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If a resultant vector is 12 m/s and the horizontal component is 9 m/s, what is the value of the vertical component? A. 5.8 m/s B
horrorfan [7]

The vertical component is B) 7.9 m/s

Explanation:

A vector can be resolved into its horizontal and vertical components. The horizontal and the vertical components form the sides of a right triangle, in which the resultant corresponds to the hypothenuse, so we can use Pythagorean's theorem:

R=\sqrt{R_x^2+R_y^2}

where

R is the resultant vector

Rx is the horizontal component

Ry is the vertical component

In this problem, we have:

R = 12 m/s is the resultant vector

Rx = 9 m/s is the horizontal component

Solving the formula for Ry, we find the vertical component:

R_y = \sqrt{R^2-R_x^2}=\sqrt{12^2-9^2}=7.9 m/s

Learn more about vector components:

brainly.com/question/2678571

#LearnwithBrainly

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
3 years ago
Read 2 more answers
Energy generated from tides is called ____________________.
aalyn [17]
Energy generated from tides is called tidal power, or tidal energy, and it is a form of hydropower that transforms energy obtained from tides into electricity, mainly. 
8 0
3 years ago
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A wire carries a 2a current. what is the current in a second wire that delivers twice as much charge in the same amount of time?
Soloha48 [4]

Answer:

4A

Explanation:

Current is charge per time.  So if the second wire delivers twice as much charge in the same amount of time, it must have twice the current.

2 × 2A = 4A

7 0
3 years ago
PLEASE HELP ASAP!!!
I am Lyosha [343]

Answer:

B - Velocity

Explanation:

Velocity definition: “The speed of something in a given direction.”

6 0
3 years ago
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