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
romanna [79]
4 years ago
13

What does the term Hubble time mean in cosmology, and what is the current best calculation for the Hubble time?

Physics
1 answer:
balu736 [363]4 years ago
4 0

Hubble time in cosmology means the estimated age of the universe and the best calculation for it is T=1/H, where H is the Hubble constant
You might be interested in
By how many degrees fahrenheit can the temperature of one metric ton of water be raised with the addition of 110 thousand btus o
Svetllana [295]
1 BTU mean 1 degree of F increased for 1 pound mass. Since the mass unit is in kg that means you need to convert it into pound. One metric ton means 1000kg and 1 kg mean 2.20462lb, then the water mass is: 1000kg x 2.20462lb/kg= 2204.62lb.

You are putting 110,000 btus of heat, so the calculation would be

Temperature increase= energy/mass = 110000btus/ 2204.62lb= 49.9 degree
5 0
4 years ago
Two lamps, each having reisistance of 3 Ohms, connect in a series. What current will flow if a voltage source of 5 V is connecte
Ket [755]
Total resistance will be R1 + R2.
And the formula will be I equals V over R.
V=5
I=?
R=6

I= 0,83 amps
6 0
3 years ago
What is the difference of Mitosis and Meiosis? Please explain it in easy way.
lesya692 [45]

Answer:

The nuclear division processes of mitosis and meiosis occur during cell division. During mitosis, body cells are divided, while during meiosis, s3x cells are divided. At mitosis, a cell divides once; at meiosis, it divides twice.

Explanation:

3 0
2 years ago
Why do naturalists suggest that we plant more trees?
____ [38]
The answer is so we have more oxygen and because loggers are cutting down more trees every day and the more they cut the less air we have
3 0
4 years ago
Read 2 more answers
1.Differentiate between heat and temperature. Use an everyday situation to supplement your answer.
enot [183]

Answer:  Temperature is the average kinetic energy of the molecules (how hot or cold something feels). Heat energy is the energy created y the motion of the molecules in an object. Heat flows from hot body to cold body. Temperature rises when heated and falls down when an object is cooled down.

There are three main scales commonly used in the world today to measure temperature: the Fahrenheit (°F) scale, the Celsius (°C) scale, and the Kelvin (K) scale. Each of these scales uses a different set of divisions based on different reference points, as described in detail below.

Explanation:

3 0
4 years ago
Read 2 more answers
Other questions:
  • 1.) Assuming the clay blob and the superball have the same mass, and that you throw them with the same velocity, which would you
    7·1 answer
  • You are asked to determine the density of a liquid. What lab equipment is most helpful to find density of the liquid?
    6·2 answers
  • The pleural cavity contains the
    6·1 answer
  • What electrons are involved in bonding between atoms? (What are they called)
    7·1 answer
  • A bonding molecular orbital is of lower energy (more stable) than the atomic orbitals from which it was formed.
    14·1 answer
  • Read the following characteristics of stars and choose the one that is correct. plz help quickly
    8·1 answer
  • Use LRFD and choose a pipe to be used as a tension member to resist a service dead load of 10 kips and service live load of 25 k
    8·1 answer
  • X ray are harmful for human health​
    10·1 answer
  • just me or does brainly just want people to watch ads or pay for answers that are sometimes wrong dont get it
    8·1 answer
  • . A 225-kg crate is pushed horizontally with a force of 710 N. If the coefficient of friction is 0.20, calculate the acceleratio
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!