1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Basile [38]
3 years ago
7

In the past, how did people use the systematic movement of celestial bodies? Select all that apply.

Physics
2 answers:
luda_lava [24]3 years ago
7 0

In past, people used the systematic movement of celestial bodies for making agricultural decisions, shipping navigation and for spiritual and religious practices.

Answer: Options 1, 2, and 4

<u>Explanation: </u>

The observation of systematic movement of celestial bodies comes under the field of Astrometry. The celestial mechanics which defines are the movement of celestial bodies is also a kind of Astrometry.

The celestial mechanics is used by the people in past to help in navigation during ship journey. Even the astrometry will help in predicting the seasons to be coming which will help in making agricultural decisions.

In astrology, the position of celestial bodies help in deciding the time for spiritual and religious practices. So, in ancient days, people used the systematic movement of celestial bodies in naked eyes to decide these.

vredina [299]3 years ago
5 0
The answer is actually a,b, and d
Brainliest?
You might be interested in
Question 1 of 10
ss7ja [257]

Answer: ME= E total - E thermal

5 0
2 years ago
11. Explain why in terms of gravity and air resistance and the 2nd law, objects in free fall regardless of mass hit at the same
Alchen [17]

Answer:

When an object is dropped, it accelerates toward the center of Earth. Newton's second law states that a net force on an object is responsible for its acceleration. If air resistance is negligible, the net force on a falling object is the gravitational force.

7 0
3 years ago
They create a heat engine where the hot reservoir is filled with water and steam at equilibrium, and the cold reservoir is fille
Marizza181 [45]

Answer:

The efficiency of Carnot's heat engine is 26.8 %.

Explanation:

Temperature of hot reservoir, TH = 100 degree C = 373 K

temperature of cold reservoir, Tc = 0 degree C = 273 K

The efficiency of Carnot's heat engine is

\eta = 1-\frac{Tc}{T_H}\\\\\eta = 1 -\frac{273}{373}\\\\\eta =  0.268 =26.8 %

The efficiency of Carnot's heat engine is 26.8 %.

4 0
3 years ago
The Kelvin scale is the most common temperature scale used in what
dalvyx [7]
It's mostly used in CHEMICAL PROCESSES.
7 0
3 years ago
Read 2 more answers
Compared to the weak nuclear force the electromagnetic force
Crazy boy [7]

Explanation:

Weak nuclear force:

The interaction between the subatomic particles is called weak nuclear force.

The weak nuclear force is one of the four fundamental forces.

The weak nuclear force is effective at very short distance.

The range and relative strength of weak nuclear force is 10⁻¹⁸ m and 10²⁵ with respect to gravitational force respectively

Deuterium is formed due to the fusion of protons and neutrons under the action the weak force.

Example : Beta decay

Electromagnetic force:  

The interaction between the charged particles is called electromagnetic force.

The electromagnetic force is one of the four fundamental forces.

The electromagnetic force is effective at long range distance.  

The range and relative strength of electromagnetic force is infinity and 10³⁶ with respect to gravitational force respectively

Example : light

8 0
3 years ago
Read 2 more answers
Other questions:
  • At the type of plate boundary shown in the image above, two plates are colliding. Which type of plate boundary is shown in this
    6·2 answers
  • Which BEST describes the difference between speed and velocity?
    9·2 answers
  • How does the frequency of sound relate to its pitch?
    5·1 answer
  • The friction of the water on a boat produces an acceleration of -10 m/s2. If the
    13·1 answer
  • in a circuit with two resistors in parallel, which of the following pair applies? a. V and I both increase across both resistors
    8·1 answer
  • As she was trying to study, Tanisha asked her roommate to lower the radio. Her roommate had turned the radio up originally from
    7·1 answer
  • LED light bulbs are more energy efficient, last longer, cost more, and have a smaller environmental impact from manufacture to r
    15·1 answer
  • What is the momentum of a photon having the same total energy as an electron with a kinetic energy of 100 keV?
    6·1 answer
  • How do y’all solve this
    7·2 answers
  • I need help with this answer I believe it's a democracy​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!