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
blsea [12.9K]
3 years ago
14

Explain what we mean when we call the universe homogeneous and isotropic. Would you say that the distribution of elephants on Ea

rth is homogeneous and isotropic? Why?
Physics
1 answer:
AfilCa [17]3 years ago
4 0

Answer:

homogenity of the universe means that the universe is the same in all locations (there is no special location in the universe because in every location you look, the locations look the same) and this applies at larger scales.

isotropy of the universe means that the universe is the same in all directions (there is no special direction in the universe because its the same in every direction) this also applies in large scale.

no, the distribution of elephants on earth is not homogeneous and isotropic.

Explanation:

the distribution of elephants on earth exist in a small scale compared to the scales of the universe and on every location on earth you may choose, they are different numbers of elephants and in every direction on earth you look there are still different numbers of elephants.

You might be interested in
Que fracción de luz que llega directa a una lamina de vidrio se refleja en la primera superficie?
Veseljchak [2.6K]

Answer:

unos 40 o30 pienso

Explanation:

7 0
3 years ago
Gravity causes objects to be attracted to one another. This attraction keeps our feet firmly planted on the ground and causes th
aev [14]

Answer:

A) G = m³/kg.s²

B) E = kg.m²/s²

Explanation:

A)

The given relation is:

F = Gm₁m₂/r²

where, the units of all variables are:

F = Force = kg.m/s²

m₁ = m₂ = mass = kg

r = distance = m

G = Gravitational Constant = ?

Therefore,

kg.m/s² = G(kg)(kg)/m²

(kg.m/s²)(m²/kg²) = G

<u>G = m³/kg.s²</u>

<u></u>

B)

The given equation is:

E = mc²

where, the units of all variables are:

m = mass = kg

c = speed = m/s

E = Energy = ?

Therefore,

E = (kg)(m/s)²

<u>E = kg.m²/s²</u>

This is the correct answer, which is not present in any option.

4 0
4 years ago
What is the component in a car engine that would detect the need for air?​
Ipatiy [6.2K]

Answer:

Control of air–fuel ratio

Oxygen sensors tell the ECU whether the engine is running rich (too much fuel or too little oxygen) or running lean (too much oxygen or too little fuel) as compared to ideal conditions (known as stoichiometric).

Explanation:

4 0
3 years ago
A rotating water pump works by taking water in at one side of a rotating wheel, and expelling it from the other side. If a pump
Xelga [282]

Answer:

Explanation:

initial angular velocity, ωo = 0 rad/s

angular acceleration, α = 30.5 rad/s²

time, t = 9 s

radius, r = 0.120 m

let the velocity is v after time 9 s.

Use first equation of motion for rotational motion

ω = ωo + αt

ω = 0 + 30.5 x 9

ω = 274.5 rad/s

v = rω

v = 0.120 x 274.5

v = 32.94 m/s

8 0
3 years ago
Is there a difference between potential difference, voltage and EMF?
Andreas93 [3]
There may be an esoteric technical shade or nuance of difference.  But I've been an electrical engineer for 40 years now, and have always used them interchangeably.

(I would have answered your question by saying "No.", but this website won't accept an answer that's less than 200 characters long.)
8 0
4 years ago
Other questions:
  • Byun walked 15 blocks in 25 minutes. What was his average speed?
    15·1 answer
  • The ability of a material to flow is called
    10·1 answer
  • ¿Qué significa que la investigación debe ser replicable? Analiza.
    10·1 answer
  • A student uses an indicator to measure the pH of a solution. The indicator shows a pH of 7. What must be true of this solution?
    13·2 answers
  • How should the mass of a harmonic oscillator be changed to double the frequency? Can the frequency be tripled by a suitable adju
    13·1 answer
  • When both momentum and kinetic energy are conserved,
    10·2 answers
  • Explain why water buckets are narrow at the base and wider at the top​
    6·1 answer
  • A child in a boat throws a 6-kg package horizontally to the right with a speed of 8 m/s.
    12·1 answer
  • PLEASE HELPPP! :))))
    12·1 answer
  • Find the magnitude of the sum of these two vectors: B 101 m 60.0 ° 85.0 m A​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!