Which statement explains the first law of thermodynamics?.
Answers
Energy is transformed and transferred in a thermodynamic system. Option B is correct
First law of thermodynamics:
It states the energy neither be created nor destroyed. It change its form from one to another. It is also known as law of conservation of energy.
It is given by the formula,
Where,
- change in internal energy
- heat added
- work done by the system
Since, heat is a form of energy, hence it is follow the principle of conservation of energy.
Therefore, energy is transformed and transferred in a thermodynamic system. Option B is correct
To know more about First law of thermodynamics:
Answer:
2: A,D,E or 1,4,5
3: B
4: B
5: 12 joules
6: 53 joules
7: B,C,E or 2,3,5
8: 2,4,3,1
9: Electrical energy in the stove is transformed into heat. The heat flows to the water in the kettle, increasing the internal energy of the water. As the energy in the water increases, the water molecules move faster until the liquid water becomes water vapor. The water vapor does work on the whistle, causing it to make a sound. Energy is neither created nor destroyed, it has simply changed form in the process.
Explanation:
youre welcome
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Gram
Meter
Pound
Answers
Among the option given below, the most appropriate SI base unit for measuring mass is Gram. Thus, the correct option is B.
What is an SI unit?
An SI unit may be defined as a form of the metric system that is utilized universally as a standard for measurements. It is an international system of units. The expanded form of the SI unit is Systeme International.
The exact SI base unit for measuring mass is the kilogram, kg. But it is not mentioned in the options. So, the most appropriate SI base unit for measuring mass is Gram.
Ampere is the SI base unit for measuring the electric current. A Meter (m) is the SI base unit for measuring length. A Pound is the international standard symbol used as a unit of mass and i.e. lb.
Therefore, among the option given below, the most appropriate SI base unit for measuring mass is Gram. Thus, the correct option is B.
To learn more about SI units, refer to the link:
#SPJ5
But that isn't the SI base unit of mass.
The base unit is the kilogram.
Answers
That is false. I just took the test and it is not the wavelength. The correct answer is antinode NOT wavelength.
Answers
= (35)(9.8)(3.5)
= 1200.5 J
Ek = (1/2)(mv^2)
= (0.5)(35)(5^2)
= 437.5 J
Answers
b. False
Answers
auditory
circulatory
respiratory
integumentary
muscular
reproductive
Answers
Answer: circulatory
respiratory
muscular
Explanation:
The physical fitness can be define as the state of well being and health. It indicates towards the ability of the organisms to perform various aspects of physical activities such as sports, daily routine work, and occupational tasks. It is achieved by moderate to vigorous physical exercises, sufficient amount of rests and proper nutrition.
The physical fitness involves the proper functioning of the vital systems of the body these includes the respiratory, circulatory and muscular. As the body performs exercise it requires more amount of oxygen also the muscles performing activity deprive of the oxygen, the rate of respiration increases, more amount of blood is pumped out by the heart to fulfill the need of oxygen.
Circulatory
Muscular