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
Feliz [49]
3 years ago
15

Why is AU (astronomical unit) the unit of distance that we used instead of kilometers?

Physics
1 answer:
Novay_Z [31]3 years ago
7 0

Answer:

The solar system is enormous, and interstellar space is even bigger. One astronomical unit is equal to 150 million kilometers. This makes it much easier to count the distances if they're in counts of Astronomic Units instead of having to count everything in millions or billions of kilometers

Explanation:

You might be interested in
A downhill skier was able to move 560 meters in 25 seconds. What is the skier’s average speed? (Round your answer to the nearest
anastassius [24]
The average speed of a moving body is given by:
average speed = total distance / total time
average speed = 560 / 25
22.4 meters per second

The skier is traveling at an average velocity of 22.4 meters per second.
7 0
3 years ago
Read 2 more answers
a child goes down the slide, starting from rest. if the length of the slide is 2m and it takes the child 3 seconds to go down th
Doss [256]

nvm deleting.................................

6 0
3 years ago
17. In which layer does mantle convection occur?
Anarel [89]

Answer:

D. Asthenosphere

Explanation:

The asthenosphere is relatively plastic part of the mantle which underlies the brittle lithosphere. In the asthenosphere, it is generally believed that the rocks are in ductile state and easily moves. It is the site of convection within the earth. In mantle convection, hot and light materials rises and keeps moving into upper crustal levels till they solidify. Here also, cold and denser materials sinks deeper till they turn to melt. This differences in temperature and density sets up a convective cell within the mantle. Several convective cells are in the mantle.

8 0
3 years ago
Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. How long will the bal
Step2247 [10]

Answer:

T = 1.2 s

T = 15.1 m = 15 m

Explanation:

This is a case of projectile motion:

TOTAL TIME OF FLIGHT:

The formula for total time of flight in projectile motion is:

T = 2 V₀ Sinθ/g

where,

T = Total Time of Flight = ?

V₀ = Launch Speed = 13.9 m/s

θ = Launch Angle = 25°

g = 9.8 m/s²

Therefore,

T = (2)(13.9 m/s)(Sin 25°)/(9.8 m/s²)

<u>T = 1.2 s</u>

<u></u>

RANGE OF BALL:

The formula for range in projectile motion is:

R = V₀² Sin2θ/g

where,

R = Horizontal Distance Covered by ball = ?

Therefore,

T = (13.9 m/s)²(Sin 2*25°)/(9.8 m/s²)

<u>T = 15.1 m = 15 m</u>

4 0
2 years ago
Read 2 more answers
Both the moon and the sun influence the tides on Earth. The moon has a much greater influence though. Why is that
3241004551 [841]
Because even though the moon is smaller, therefore a weaker gravitational pull, the moon is much closer to the earth than the sun, thus having a greater gravitational pull
3 0
3 years ago
Other questions:
  • You cause a particle to move from point A, where the electric potential is 11.3 V, to point B, where the electric potential is −
    13·1 answer
  • Which of the following is most useful to determine how much energy is being used by a circuit in a given amount of time?
    15·1 answer
  • 5. Two negative charges that are both - 3.8 C push each other apart with a force of 19.0 N. How far apart
    5·1 answer
  • 1. The combination of all the forces on an object is called
    10·1 answer
  • The world's demand for fuel is ever increasing. Identify the fuel type predicted to run out within the next hundred years.
    5·1 answer
  • A boy shoves his stuffed toy zebra, which has mass m, down a frictionless chute, starting at a height D above the bottom of the
    5·1 answer
  • 5
    6·1 answer
  • If you start with a substance as a solid, what will happen to the molecules as you add thermal energy (heat)?
    5·1 answer
  • The Ancient Roman economy did not make use of
    8·2 answers
  • Q: Compare and contrast the different parts of the Electromagnetic Spectrum. Evaluate the usefulness of each part and decide whi
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!