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ycow [4]
3 years ago
8

The four giant gas planets that are made primarily of lightweight elements are

Physics
1 answer:
Hoochie [10]3 years ago
8 0
D) although recent research (1990's) has shown Uranus and Neptune to be ice giants and have heavier substances.
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Look at the triangle below.
slega [8]

Answer:

a = 32.48538491

b = 25.59883264

Step-by-step explanation:

To find the length of a, use the sine function:

sin\alpha = \frac{opposite}{hypotenuse}

sin 38 = \frac{20}{a} \\a = \frac{20}{sin38}\\a = 32.48538491

To find the length of b, use tangent:

tan\alpha = \frac{opposite}{adjacent}

tan 38 = \frac{20}{b} \\b = \frac{20}{sin38}\\b = 25.59883264

7 0
3 years ago
Which image shows the correct way of lining up vectors to add them together? A. two arrows lined up facing away from each anothe
Morgarella [4.7K]

The image shows the correct way of lining up vectors to add them together, that the two arrows lined up one after the other, therefore the correct answer is option B.

<h3>What is a vector quantity?</h3>

The quantities that contain the magnitude of the quantities along with the direction are known as the vector quantities.

Examples of vector quantities are displacement, velocity acceleration, force, etc.

Thus, the image shows the correct way of lining up vectors to add them together, that the two arrows lined up one after the other, therefore the correct answer is option B.

Learn more about the vector quantity here ,  refer to the link given below ;

brainly.com/question/15516363

#SPJ1

8 0
1 year ago
What is the role of the midbrain, and which part of the midbrain is important for arousing the forebrain?
Rainbow [258]

Answer:

The fore-brain consists of the cerebrum, thalamus, and hypothalamus. Mid-brain relays information between fore-brain and hind-brain. Mid-brain plays important role in developing motor functions like eye movement, auditory functions and visual processing.  The crus cerebri connects the cerebral hemispheres to the cerebellum, contains a portion having a network of neurons that is responsible for arousal and alertness.

6 0
3 years ago
How is the force of gravity mathematically related to the factors<br> that answer Question I?
Vadim26 [7]

Answer:

Probably the more correct version of the story is that Newton, upon observing an apple fall from a tree, began to think along the following lines: The apple is accelerated, since its velocity changes from zero as it is hanging on the tree and moves toward the ground. Thus, by Newton's 2nd Law there must be a force that acts on the apple to cause this acceleration. Let's call this force "gravity", and the associated acceleration the "acceleration due to gravity". Then imagine the apple tree is twice as high. Again, we expect the apple to be accelerated toward the ground, so this suggests that this force that we call gravity reaches to the top of the tallest apple tree.

3 0
3 years ago
Independent measurements of two lengths are made. The results are x=95 +- 0.1 and y=2.30+-0.02 cm
notsponge [240]
95-2.30+0.1+0.02cm =0.00089186
100m
3 0
3 years ago
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