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AveGali [126]
3 years ago
7

Which of the following statements about ionization energy is true?. A. In a period, elements farther to the right generally have

lower ionization energies than elements on the left. . B. Elements toward the bottom of a group periodic table generally have higher ionization energies than elements at the top of the group. . C. Ionization energy is the amount of energy used to add an electron to an atom. . D. Potassium has a lower ionization energy than sodium.
Physics
1 answer:
Zepler [3.9K]3 years ago
4 0
D. Potassium has a lower ionization energy than sodium
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Answer:

D. The cart is moving at a constant speed or velocity

Explanation:

Equilibrium is a state of body in which it is either at rest or moves with uniform velocity. The sum of forces acting on such a body is always zero and the sum of all the torques acting on it is also zero.

There are two types of equilibrium as follows:

Static Equilibrium: When a body is at rest it is said to be in static equilibrium.

Dynamic Equilibrium: When a body is moving with constant velocity, then it is said to be in dynamic equilibrium.

Hence, the correct option here will be:

<u>D. The cart is moving at a constant speed or velocity</u>

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Coal and other fossil fuels are considered to be "nonrenewable" sources of energy. How does the use of nonrenewable fuels affect
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Answer: D Although the total energy remains constant, nonrenewable fuels convert chemical energy into forms that are difficult or impossible to use again.

Explanation:

The first law of thermodynamics says that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another.

7 0
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What is the mechanical advantage of a nail puller where you exert a force 45 cm from the pivot and the nail is 1.8 cm on the oth
Mandarinka [93]

Answer:

Explanation:

Mechanical Advantage is the ratio of the distance of the input load (Li)from the pivot to the output load applied to the pivot(Lo)

MA = Li/Le

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MA = 45/1.8

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Also MA is expressed in terms of the force ratio which is the ratio of the Load to the effort applied.

MA = Load/Effort

Given

Load = 1250N

MA = 25

Effort = ?

Substitute

25 = 1250/Effort

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Effort = 50N

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Select all the things the prefrontal cortex helps you do
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Understand future consequences, for tell the future, control urges, and delayed gratification
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Answer:

9

Explanation:

6 0
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