The correct answer is B. Lindsay measures the sizes of the craters on the Moon, is the best description of a person doing science.
Science is the practical and intellectual pursuit of the understanding of the physical and natural world that surrounds us. It involves a systematic study: observation, experimentation, data analysis, discussion and conclusion. Science is the human effort to gather knowledge about the universe.
Answer:
B.
Explanation:
bar as she swings through the air. After he stops pushing her, she slows down
and eventually stops. This example shows that:
A. energy is converted between forms with complete efficiency.
B. energy is created as Sally's dad begins to push her.
C. energy is destroyed by friction and vibration.
D. energy is transferred to friction and vibration as it is converted between different forms.
According to law of conservation of energy, the given example shows that energy is transferred to friction and vibration as it is converted between different forms as it can neither be created nor destroyed.
According to law of conservation of energy, it is evident that energy is neither created nor destroyed rather it is restored at the end of a process .
Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.
Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Julius Robert Mayer in the year 1842.
Learn more about law of conservation of energy,here:
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Answer:d
Explanation:
The energy levels of an atom are occupied by electrons. These energy levels are often represented as shells, and each level can hold a specific number of electrons. Electrons are crucial in determining an atom's properties.
The energy levels of an atom are occupied by electrons. An atom's structure consists of a nucleus, which is surrounded by the energy levels. These energy levels, often represented as shells, house the electrons. For example, the first energy level can accommodate up to 2 electrons, while the second energy level can hold up to 8. These electrons play a critical role in determining the physical and chemical properties of atoms and subsequently, the substances they form.
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Answer:The pure substance within chemistry is a very simple concept to grasp. Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). ... Purity can also have an important impact on the chemical properties of a substance.
Explanation:
(2) gold (4) zinc
Answer:
2n^2 electrons
Explanation:
for example, the first level contain 2*(1^2) = 2 electrons, the second level contain 2*(2^2) = 8 electrons, etc
Answer:
32
i just looked it up honestly