Which of the following is not a vector?

Answers

Answer 1

Answer:

Power is not a vector quantity in the provided query. The correct answer is option c.

A vector quantity is a physical quantity with magnitude as well as direction. Displacement, velocity, acceleration, and force are the types of vector quantities.

In contrast, power is a scalar quantity, which means it has simply magnitude and no direction. Power is measured in watts (W) or joules per second (J/s) and is defined as the rate at which work is done or energy is moved.

Therefore, the physical quantity that is not a vector quantity is option c, power.

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The given question is incomplete. The complete question is:

Which of the following is not a vector quantity? Select one:

a. acceleration

b. displacement

c. power

d. velocity.

Answer 2

Answer: do we get multiple choice

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C is necessarily not true because at equilibrium, only the rates of the forward and reverse reaction are the same. Concentrations and amounts of both reactants and products do not have to be the same at equilibrium

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Which of the following cannot pass across the placenta?(a) oxygen
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Answers

The placenta is the structure that allows for transfer of wastes, oxygen, and
nutrients between the mother and the fetus. The fetal blood comes extremely
close to the maternal blood in the placenta, but there is no intermingling of fetal
and maternal blood. The fetus and mother can even have, and often do have,
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You are given an aqueous solution of NaCl. The simplest method for the separation of NaCl from the solution is (A) evaporation of the solution to dryness
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Answers

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List inconsistency of Dalton's atomic theory

Answers

It does not account for isotopes: As per Dalton's atomic theory, all atoms of an element have identical masses and densities. However, different isotopes of elements have different atomic masses (Example: hydrogen, deuterium, and tritium).

Summarize the five points of Dalton’s atomic theory, and explain at least one change that occurred to the atomic theory because of further experimentation.Important Points:
All matter is composed of very small particles called atoms.
All atoms of a given element are identical.
Atoms cannot be created, destroyed, or subdivided.
Atoms combine with or separate from other atoms.
Atoms combine with each other.

Answers

Five points of Dalton's atomic theory:
1) all elements are made up of atoms.
2) atoms are so small that they cannot be divided any further.
3) an atom can neither be destroyed nor be formed.
4) atoms of an element are similar, they posses same mass and same properties.
5) atoms of different elements combine in a definite ratio to form compounds.

Due to further experimentation it was concluded that atom is made up of small particles identified as proton, neutrons, and electrons. They can be further subdivided.

Another change is the presence of isotopes of atoms of different elements. Hence, atoms of the same element can also have different masses.

A solute is a mixture in which particles can be seen and easily separated. Please select the best answer from the choices provided T F

Answers

F because solute is the one which is mixed to the other for a solution and after mixing I can never been seen neither separated !!

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