coal is the correct answer
In a covalent bond, valence electrons are shared; in an ionic bond, valence electrons are transferred.
B.
In a covalent bond, valence electrons are transferred; in an ionic bond, valence electrons are shared.
C.
In a covalent bond, outer electron orbitals are shared; in an ionic bond, outer electron orbitals are transferred.
D.
In a covalent bond, outer electron orbitals are transferred; in an ionic bond, outer electron orbitals are shared.
Answer:
Atoms form two types of bonds: ionic bond and covalent bond. In a covalent bond, valence electrons are shared; in an ionic bond, valence electrons are transferred.
Explanation:
Therefore, the answer is A
b. refraction.
c. diffraction.
d. interference.
The bending of waves around the edge of a barrier is known as diffraction (Option C)
To know which option is correct, we shall define the given options. This is shown below:
Reflection of a wave is simply defined as the bounce back of a wave without a change in the properties of the wave
Refraction is the change in the properties of a wave as it travel from one medium to another.
Diffraction is a property of wave which is defined as the bending of light around the edge of obstacle or barriers.
Interference is the combination of waves to form an entirely different wave with either a reinforce or destructive displacement.
With the above definitions, we can conclude that the correct answer to the question is diffraction (option C)
Learn more about diffraction of wave:
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Galileo Galilei
Albert Einstein
Henrietta Swan Leavitt
Edwin Hubble
Georges Lemaître
theorized that the universe had a beginning
showed that the universe was expanding
demonstrated a method to calculate the distance of celestial bodies
was the first to use a telescope to observe the planets
huit a model of the inverse haced on relativity
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Galileo Galilei was the first to use a telescope to observe the planets
Albert Einstein built a model of the universe based on relativity
Henrietta Swan Leavitt demonstrated a method to calculate the distance of celestial bodies
Edwin Hubble showed that the universe was expanding
Georges Lemaître theorized that the universe had a beginning
Science is the methodical, empirically-based pursuit and application of knowledge and understanding of the natural and social worlds.
A method of learning about the world is science. Science allows people to participate in the creation of new knowledge as well as use that knowledge to further their goals. It is both a process, a product, and an institution.
Thus, The first person to observe the planets through a telescope was Galileo Galilei.
Based on relativity, Albert Einstein created a model of the universe.
A technique to determine the separation between celestial bodies was demonstrated by Henrietta Swan Leavitt.
Edwin Hubble demonstrated the expansion of the universe
According to Georges Lemaître, the universe had a beginning.
Learn more about the science here
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Answer:
Georges Lemaître - theorized that the universe had a beginning
Albert Einstein - huit a model of the inverse haced on relativity
Galileo Galilei - was the first to use a telescope to observe the planets
Edwin Hubble - showed that the universe was expanding
Henrietta Swan Leavitt - demonstrated a method to calculate the distance of celestial bodies
is my choices report if wrong
Explanation : When Tito lifts the heaviest object, he is testing his strength.
We know, strength is the quality of the physical energy and potential of the person. The strength of the person is power and his capacity.
So, we can say that When Tito lifts the heaviest objects then he is testing his strength, potential, and power.
Answer:
They both rises to same height.
Explanation:
When an object is sliding up in friction less surface than according to conservation of energy its potential energy will be converted into kinetic energy.
Here, m is the mass, v is the velocity, g is the acceleration due to gravity and H is the height.
Here the height is independent on the mass of an object and its only depend on velocity.
Now according to the question, two objects have same velocity but they have different masses.
Therefore, they rises to the same height because height will not change with mass.
Let's recall Kinetic Energy Formula as follows:
Ek = Kinetic Energy ( Joule )
m = mass of the object ( kg )
v = speed of the object ( m/s )
Let us now tackle the problem !
Given:
initial speed of first object = initial speed of second object = v
final speed of first object = final speed of second object = 0
mass of first object = m
mass of second object = 2m
Asked:
height = H = ?
Solution:
We will use Conservation of Energy to solve this problem:
Both objects rise to the same height
Grade: High School
Subject: Physics
Chapter: Energy
b. a person sliding a box across the floor
c. a metal bar bracing a leaning brick wall
d. an air bag deploying in an automobile wreck