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deff fn [24]
3 years ago
15

• Be able to identify the forms of kinetic vs. potential energy, and to list some forms of each. • Be able to state the Law of C

onservation of Energy. Also, what is the definition of energy efficiency? • What is the difference between renewable and nonrenewable energy? Be able to identify each major source of energy as renewable or nonrenewable. • What is the distribution of energy consumption in the U.S. by energy sector? Is most of the energy that we consume renewable or nonrenewable? Is electricity a primary or secondary source of energy? What IS a secondary source of
Physics
1 answer:
schepotkina [342]3 years ago
3 0

Answers and Explanation:

Forms of Kinetic energy

  • Translational kinetic energy
  • Rotational kinetic energy
  • Vibrational kinetic energy

Forms of Potential energy

  • Gravitational potential energy
  • Electrostatic potential energy
  • Elastic potential energy
  • chemical potential energy

Energy efficiency is a measure of the amount of energy conserved in a process. It is the ratio of the output energy to the input energy.

Differences between renewable and non renewable energy

  • Renewable energy can replenish themselves by recycling and replacement while non-renewable energy cannot
  • Renewable energy are continuously available while non renewable energy are exhausted
  • Renewable energy has low carbon emission and hence environment friendly while non renewable energy has high carbon emission and not environmental friendly

Sources of renewable energy

Solar energy.

Wind energy.

Hydro energy.

Tidal energy.

Geothermal energy.

Biomass energy.

Sources of non-renewable energy

Coal

Petroleum

Natural gas

Distribution of energy consumption in the US by energy sector

Petroleum = 36.2 %

Natural gas = 28%

Coal = 13.9%

Renewable energy = 11.0%

Nuclear electric power = 8.4%

Most of the energy consumed by the United States is non-renewable

Electricity is a secondary source of energy. It is derived from the conversion of primary sources

A secondary source of energy is a derivative from the transformation of primary sources of energy

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3 years ago
If all of the forces acting on an object are balanced, then:
kondaur [170]

A. the direction the object is moving in will not change.

B. the acceleration of the object will be 0 m/s2

Explanation:

We can answer this problem by using Newton's second law of motion:

\sum F = ma

where

\sum F is the net force acting on an object

m is the mass of the object

a is its acceleration

In this problem, all the forces acting on the object are balanced, therefore the net force is zero:

\sum F=0

which means that also the acceleration is zero:

a=0

Acceleration is equal to the rate of change of velocity: therefore, zero acceleration means that the velocity of the object does not change. We can now analyze the given statements:

A. the direction the object is moving in will not change.  --> TRUE, because the velocity is not changing.

B. the acceleration of the object will be 0 m/s2  --> TRUE, as we stated above

c. the object will not be in motion.  --> FALSE: we just know that its velocity is constant, but it can be different from zero

D. the velocity of the object will be 0 m/s. --> FALSE, for the same reason stated in C

Learn more about Newton's second law of motion:

brainly.com/question/3820012

#LearnwithBrainly

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When energy from the sun hits the air above
valentina_108 [34]

Answer: C I think.

Explanation:

3 0
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How can I shorten this and for it to sill make sense?
Julli [10]

Answer:

Radiation is the emission or transmission of energy in the form of waves.

Explanation:

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Which of these atoms is the most electronegative? select one: a. si b. cl c. p d. f e. c
katrin [286]

The atom that is the most electronegative is fluorine (F).

<h3>What is electronegative?</h3>

Electronegativity, is the tendency for an atom of a given chemical element to attract shared electrons when forming a chemical bond.

Electronegativity increases across the groups from left to right of the periodic table and decreases down the group.

Examples of electronegative elements arranged in decreasing order;

  • fluorine,
  • oxygen,
  • nitrogen,
  • chlorine,
  • bromine,
  • iodine,
  • sulfur,
  • carbon, and
  • hydrogen.

Thus,  the atom that is the most electronegative is fluorine (F).

Learn more about electronegativity here: brainly.com/question/24977425

#SPJ1

4 0
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