Why do we get tired?

Answers

Answer 1
Answer: We get tired because our bodies are always working and using energy. And doing all that work makes our bodies need rest and sleep.

Related Questions

A box weighing 100 newtons is pushed up an inclined plane that is 5 meters long. It takes a force of 75 newtons to push it to the top, which has a height of 3 meters. What is the efficiency?
How can two strengths be added together
This question kind of complicated for me
What triggers a sinkhole collapse?
Two billiard balls move toward each other on a table. The mass of the number three ball, m1, is 5 g with a velocity of 3 m/s. The mass of the eight ball, m2, is 6 g with a velocity of 1 m/s. After the balls collide, they bounce off each other. The number three ball moves off with a velocity of 5 m/s. What is the final velocity and direction of the eight ball? +8.6 m/s +5.7 m/s –5.7 m/s –8.6 m/s.?

Microwave,radio signal,light,earthquake which does not belong

Answers

Answer:

earthquake does not belong to electromagnetic waves

Earthquake, because the rest are referring to electrical appliances.

The energy stored in gasoline is A chemical energy
B electromagnetic energy
C mechanical energy
D nuclear energy

Answers

The answer is A, Chemical Energy.

Final answer:

Gasoline stores chemical energy, which can be transformed to other types of energy via chemical reactions, such as the combustion in a car engine.

Explanation:

The energy encapsulated within gasoline can be precisely characterized as chemical energy. This type of energy is encapsulated within the chemical bonds of various compounds, encompassing molecules and atoms. It is significant to note that chemical energy, as a versatile energy form, can be both liberated and harnessed as a source of power in diverse applications.

In the case of gasoline, it represents a potent reservoir of chemical energy. When gasoline undergoes combustion in the engine of a car, it engages in a chemical reaction. This reaction leads to the release of the energy contained within the chemical bonds of gasoline molecules. This released energy manifests in the form of mechanical power, propelling the vehicle, and heat energy, which warms the engine and the surrounding environment. In this process, gasoline's chemical energy is converted into mechanical and thermal energy, illustrating the dynamic interplay between different forms of energy in our daily lives.

The precise understanding of chemical energy's role in powering engines and facilitating various industrial processes underscores the fundamental principles of energy transformation and utilization, forming the basis of many technological advancements and applications.

Learn more about Chemical Energy here:

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Describe the movement of air over two nearby land areas, one of which is heated more than the other

Answers

Answer
The description required is the same as the one on the land and sea breezes.
On the heated land, the ground gains heat energy and heats the air on top of it. When this air is heated it expands and becomes less dense. It rises and the cold dense air from the land that is not much heated flows to replace it. Thus cold air flows to the heated land. The hot air moves up then flow to replace the cold air forming a kind of a cycle.
This process repeats itself as long as one land is heated more than the other.  

Answer:

The air above the less-heated will be cooler.

Explanation:

Dark cooler areas on the sun's surface are called what? (Prominences, solar flares, coronas, or sunspot)

Answers

Darker, cooler areas on the sun's surface are called sunspots.
Hope that helped =)
The answer in sunspot.

WHAT IS THE IMPORTANCE OF THE TROPIC OF CANCER AND TROPIC OF CAPRICORN

Answers

The tropic of cancer and tropic of capricorn has inportance in geographical studies. They help to divide the oceans. They help to classify different countries ( as lying in and around of either of the zones). On classifying, we can also predict weather or atmospheric pressure over the country ( with respect to tropic of cancer or tropic of capricorn). Thus, it has important role in geography. 
they help the divide the world and describe the difference in weather patterns

Find the value of 15.0 Newton in pounds

Answers

1 Newton is equal to 0.22480894 pounds (force)

So you must multiply the magnitude of 15 Newtons by this conversion value to obtain the equivalent magnitude in units of pounds (force):

(15 N)*(0.22480894 N/lbf) = 3.37 lbf rounded to the nearest hundredth
15.0 Newton ≈ 3.37 pounds