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2 years ago

Real life example of block and tackle

1 answer:

3 0

A group of people are building a house. They have a large package of building materials that needs to be moved. A block and tackle, a type of pulley, is used to pull the material up so it can be set in the back of a truck.

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The physical properties that determinantes how easily beat and and electricity pass through a material is

Nastasia [14]

Answer:

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3 years ago

What role do variations have in the theory of evolution by natural selection?

Black_prince [1.1K]

Answer:

Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others. ... Through this process of natural selection, favorable traits are transmitted through generations.

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3 years ago

Which three minerals are most likely used in the construction of a house?

Ahat [919]

Answer:

lead pencils (graphite)

fertilizer (potassium, sodium, calcium)

chalk (gypsum)

flashbulb (zirconium)

window glass/mirrors (silica)

table salt (halite)

Explanation:

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2 years ago

Kepler's second law using Mercury , which has an orbital period of about 0.24 and a semimajor axis of about 0.387 . Explain your

krok68 [10]

As the semimajor axis of a planet increase, the orbital period will decrease and the speed of the planet will decrease.

<h3>What is Kepler's second law?</h3>

Kepler's second law of planetary motion describes the speed of a planet traveling in an elliptical orbit around the Sun.

This law exaplains the speed of planets around the sun, the speed of the planet increases as it nears the sun and decreases as it recedes from the sun.

From the findings, the astronomical unit of the Mercury is 0.387 and the orbital period is 0.24 year.

$T \propto a^{3/2}$

$T = ka^{3/2}\\\\k = \frac{T}{a^{3/2}}$

From the equation above, as the semimajor axis of a planet increase, the orbital period will decrease and the speed of the planet will decrease.

Learn more about orbital period here: brainly.com/question/22247460

#SPJ 1

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2 years ago

A scientist wants to study the interactions of different birds in the southern part of a desert. What should the scientist do fi

kati45 [8]

Answer;

C.Identify each bird species by using a dichotomous key.

Explanation;

-A dichotomous key is a tool that is used to determine the identity of items in an ecosystem or a particular habitat, such as trees, birds, wildflowers, mammals, reptiles, rocks, and fish. To study the interactions of different birds , identifying each birds species using a dichotomous key would be an important and appropriate step.

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2 years ago

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