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
Allisa [31]
3 years ago
15

The universe consists of many galaxies. Which choice correctly identifies our home galaxy and its type?

Physics
1 answer:
White raven [17]3 years ago
8 0

Answer:

B

Explanation:

You might be interested in
Suppose you pour 0.250 kg of 20.0°C water into a 0.600 kg aluminum pan off the stove with a temperature of 173°C. Assume that th
lapo4ka [179]

Answer:

T_f=5.0116^{\circ}C

Explanation:

Given:

  • mass of water, m_w=0.25\ kg
  • initial temperature of water, T_i_w=20^{\circ}C
  • initial temperature of pan, T_i_p=173^{\circ}C
  • mass of pan, m_p=0.6\ kg
  • mass of water evapourated, m_v=0.03\ kg
  • specific heat of water, c_w=4186\ J.kg^{-1}.K^{-1}
  • specific heat of aluminium pan, c_a=900\ J.kg^{-1}.K^{-1}
  • latent heat of vapourization, L=2256000\ J.kg^{-1}

<u>Using the equation of heat:</u>

<em>Here, initially certain mass of water is vapourised first and then the remaining mass of water comes in thermal equilibrium with the pan.</em>

m_p.c_a.(T_{ip}-T_f)=m_v.L+(m_w-m_v).c_w.(T_f-T_{iw})

0.6\times 900\times (173-T_f)=0.03\times 2256000+(0.25-0.03)\times 4186\times (T_f-20)

T_f=5.0116^{\circ}C

5 0
3 years ago
PLEASEEEE HELP :( it would mean a lot
Elis [28]

Answer:

Each object exerts a force on the other, and the two forces are equal and in opposite directions

Explanation:

Newton's 3rd Law Of Motion:

For every action, there is an equal and opposite reaction.

5 0
3 years ago
Read 2 more answers
4) The object that changes its position relative to a fixed point with time is called ..<br>​
mariarad [96]
Hold on lemme get the link for you
5 0
3 years ago
2. physical quantities which do not depend on any physical quantities for their measurements are known as​
seropon [69]

Answer:

Fundamental quantities

5 0
3 years ago
I’m designing a kitchen for a person in a wheel chair, which accommodation is least important? A. Provide turn around space for
Valentin [98]
The least important accommodation would be C. 
7 0
3 years ago
Read 2 more answers
Other questions:
  • What does the phrase rise over run refer to when defining slope
    5·1 answer
  • When you push with a horizontal 15-N force on a book that slides at constant
    14·1 answer
  • Explain why the life cycle of a star can be compared to the life style of a human
    11·1 answer
  • Estimate how fast your hair grows, in units of m/s, assuming it takes 30 days for your hair to grow 1 inch. note that 1 inch =2.
    12·1 answer
  • 1. What occurs when there is a change in position of an object with respect to a reference starting point?
    10·2 answers
  • A billiard ball collides with a second identical ball in an elastic head-on collision. What is the kinetic energy of the system
    13·2 answers
  • An insulated rigid tank initially contains 1.4-kg saturated liquid water and water vapor at 200°C. At this state, 25 percent of
    9·1 answer
  • What happens to a circuit's resistance (R), voltage (V), and current (1) when
    13·1 answer
  • 1. If airbags reduce the impact force from an accident why has there been questions over their safety?
    9·1 answer
  • All about Henry Mosléy?<br>​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!