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slava [35]
3 years ago
6

Describe at least four of the requirements (facts) that any model of solar system formation must include (according to the nebul

ar theory of the origin of the solar system)
Physics
1 answer:
kvasek [131]3 years ago
4 0
The nebular theory describes the formation of the solar system and states that the system began as a gigantic cloud of gas and dust called a nebula which eventually condensed to form the sun, planets and other objects in the solar system. The first fact speaks to the formation of the planets, where gravity pulled larger clumps of material closer to form solid rocky planets closer to the sun and gas giants further out. The second requirement is that a nearby explosion or super nova would have to disturb our nebula to trigger rotation and the eventual formation of the sun. The third requirement/fact is that the planets go around the sun in the same direction. the last fact is that the planets go around the sun within 6 degrees of a common plane. This indicates that the solar system formed from a spinning disk of materials.
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Suppose Earth's gravitational force were decreased by half. How would this change affect a game of basketball? Write a paragraph
timama [110]
If the gravitational force were<span> decreased by half, there would be lack of gravity on earth. Hence, it would basically affect the velocity, speed, and the distance travelled in any direction by basketball players and the ball. The basketball would bounce higher and come down in a slower speed. Whereas for the players, they would be able to leap higher from the floor.</span><span> </span>
7 0
3 years ago
What is the momentum of a ten ton truck which is sitting still?
ANTONII [103]

The momentum of the truck is given by:

p = mv

p = momentum, m = mass, v = velocity

There isn't too much work to do here; the truck is at rest, therefore its velocity is 0. This means the product of m and v is 0, giving the momentum as 0.

7 0
3 years ago
Question 4 What would be the UCS for Tab the dog? O The shock O The flowers and fence O Fear O The boundary Question 5​
Harrizon [31]

The unconditioned stimulus (UCS) for Tab the dog is: B. The flowers and fence.

<h3>The types of stimuli.</h3>

In Science, the two (2) stimuli that are repeatedly paired in classical conditioning include:

  • Conditioned stimulus
  • Unconditioned stimulus

<h3>What is an unconditioned stimulus?</h3>

An unconditioned stimulus can be defined as a stimulus that is capable of naturally triggering a response, before or without any conditioning while it elicit a specific response without learning.

  • This ultimately implies that, an unconditioned stimulus leads to an automatic response in a living organism such as a dog.

In this scenario, the unconditioned stimulus (UCS) for Tab the dog is simply the flowers and fence.

Read more on unconditioned stimulus here: brainly.com/question/24868138

3 0
2 years ago
Is it B? Not too sure about this one.
olchik [2.2K]
The correct answer to this problem is C
3 0
3 years ago
Read 2 more answers
Consider a 3 m long string, clamped at both ends. The string has a mass of 60 g and waves travel at v = 100 m/s. The third harmo
PilotLPTM [1.2K]

Answer:

a) λ = 2 m

, c)  f = 50 Hz

Explanation:

When a string is fixed at the ends the wave is reflected at each end, giving rise to a standing wave.

Since we extract them are fixed we have nodes at these points, the wavelength in the string is

fundamental       λ = 2L

2nd harmonic      λ= 2L / 2

3 harmonica         λ= 2L / 3

a and b) from aui we can find the wavelength

             λ = 2 3/3

             λ = 2 m

c) the speed of the wave is related to the frequency and wavelength

          v = λ f

          f = v / λ

          f = 100/2

          f = 50 Hz

d) the acceleration can be found with the equations

         a = d²y / dt²

the standing wave equation is

          y = 2A sin kx cos wt

          a = -2A w² sin kx cos wt

the acceleration is maximum when the cosine is ±1

          A = 2A w² sin kx

the oscillatory part indicates that the wave moves, if we make this maximum vine, they relate it to

          a = 2A w²

          w = 2πf

          A = 0.2 cm = 0.002 m

         a = 2 0.002 (2π 50)²

         a = 98.7 m / s

8 0
3 years ago
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