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Lemur [1.5K]
3 years ago
8

According to the nebular theory, the planets formed from a process called . After our protosun formed, remaining dust and gas fr

om the nebula collided, combined, and gravitated together to form the planets.
Advanced Placement (AP)
1 answer:
pashok25 [27]3 years ago
4 0

Answer:

According to the nebular theory, the planets formed from a process called <u>accretion</u>.

Explanation:

The nebular theory is a theory that explains the formation of solar systems. After the formation and growth of the proto-star, the gases and dust in the nebula form a disk and spiral quickly around its center under the influence of its gravitation. This long and destructive process ends with the formation of planets, characteristics of which depend on their distance from the star. The term from astrophysics referring to this way of planet formation is <em>accretion</em>. Planets are not only astronomical objects created by accretion processes but galaxies and stars as well.

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If a researcher was collecting data from the same group of 30 people from infancy through childhood, they would be using the ___
Ede4ka [16]

Answer:

a. longitudinal

Explanation:

A longitudinal study examines a given group over a long period of time, so collecting data from the same group of 30 people over their lifetime certainly fits that definition.  It's more like an evolution study.

A cross-sectional compares different groups at the same point in time.  So, it's more like a survey.

A microgenetic is much focused in time, providing multiple data sets in a short time to examine rapid evolution of a subject.

An experimental study design will make interactions and experiments with the study group, while this is not the case here apparently, and experimental is usually for a much shorter period than a generation.

3 0
3 years ago
How did institutional changes between the 1960s and 1980s change state legislatures abilities to develop public policy?
dusya [7]
The Institutional changes between the 1960s and 1980s shifted the public policy from emphasizing public interest to upholding and satisfying the regulations. Among the greatly affected was the educational system. The structures of the different learning institutions were changed to accommodate dynamic market models and work around the expected outcomes of learning.
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3 years ago
Explain one historical situation in the period 1750 - 1900, other than the one illustrated in the passage, in which states in As
Ann [662]

Answer:

read the passage

Explanation:

the passage has the answer

3 0
3 years ago
Which of the following terms refers to using wooden structures or mechanical or hydraulic systems to support the sides of an exc
soldier1979 [14.2K]

Protective systems are methods of protecting workers from cave-ins of material that can fall or roll into an excavation, or from the collapse of nearby structures. As mentioned in earlier chapters, if an excavation is less than 5 feet deep, OSHA does not require a protective systems unless the competent person sees signs of a potential cave-in. (It is important to remember that a wall collapse in a trench four and 1/2 feet deep can still have serious results!) For trenches between 5 feet and 20 feet deep, shoring and sheeting, shielding, sloping and benching are all acceptable protective measures. It is up to the planners of the construction project and the competent person on site to determine which systems will work best. If an excavation is greater than 20 feet deep, a registered professional engineer must design the protective system.

Shoring systems are structures of timber, mechanical, or hydraulic systems that support the sides of an excavation and which are designed to prevent cave-ins.Sheeting is a type of shoring system that keeps the earth in position. It can be driven into the ground or work in conjunction with a shoring system. Driven sheeting is most frequently used for excavations open for long periods of time. Another type of sheeting, in which plates or shoring grade plywood (sometimes called Finland form) is used in conjunction with strutted systems such as hydraulic or timber shoring. These strutted systems are also referred to as active systems. The most frequently used strutted system involves aluminum hydraulic shoreswhich are lightweight, re-usable and installed and removed completely from above 

8 0
3 years ago
What is the importance of the state to an individual?​
mash [69]

Answer:

The evaluation of the discussion would be summarized throughout the argument section below.

Explanation:

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