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
Elena L [17]
3 years ago
6

Which statements describe properties of stars?

Physics
2 answers:
Ede4ka [16]3 years ago
7 0

Statements 1, 3, and 5 are true.

(A, C, and E)

Vanyuwa [196]3 years ago
7 0

Answer:

Statements 1,3, and 5 are correct

Explanation:

The facts which are correct of stars are ( among the given options)

1. Stars produce energy by nuclear fusion reaction.( in nuclear fusion reaction two molecules of hydrogen combine to form helium atom releasing a lot of energy.)

3. Stars are massive objects Composed of gases.

5. Stars are composed primarily of hydrogen and helium.

You might be interested in
A bar of length L = 8 ft and midpoint D is falling so that, when θ = 27°, ∣∣v→D∣∣=18.5 ft/s , and the vertical acceleration of p
777dan777 [17]

Answer:

alpha=53.56rad/s

a=5784rad/s^2

Explanation:

First of all, we have to compute the time in which point D has a velocity of v=23ft/s (v0=0ft/s)

v=v_0+at\\\\t=\frac{v}{a}=\frac{(23\frac{ft}{s})}{32.17\frac{ft}{s^2}}=0.71s

Now, we can calculate the angular acceleration  (w0=0rad/s)

\theta=\omega_0t +\frac{1}{2}\alpha t^2\\\alpha=\frac{2\theta}{t^2}

\alpha=\frac{27}{(0.71s)^2}=53.56\frac{rad}{s^2}

with this value we can compute the angular velocity

\omega=\omega_0+\alpha t\\\omega = (53.56\frac{rad}{s^2})(0.71s)=38.02\frac{rad}{s}

and the tangential velocity of point B, and then the acceleration of point B:

v_t=\omega r=(38.02\frac{rad}{s})(4)=152.11\frac{ft}{s}\\a_t=\frac{v_t^2}{r}=\frac{(152.11\frac{ft}{s})^2}{4ft}=5784\frac{rad}{s^2}

hope this helps!!

6 0
3 years ago
Read 2 more answers
What is one way you are using nonrenewable resources?
lutik1710 [3]

Putting gas in your car is one way you are using non-renewable resources.

You could Reduce, Recycle and Re-use items. You could manage what you do with you're water. Reducing and reusing products cuts down on manufacturing pollution, just as the use of recycled instead of virgin materials prevents pollution in industrial processes. You could add food coloring to your toilet tank. You could also do this: use sprinkler heads that sprinkle mist out instead of droplets of water.  to avoid losing water to evaporation.

6 0
3 years ago
2 / 3
kiruha [24]

Answer:

Explanation:

   

3 0
3 years ago
A wave with low energy will also have
yKpoI14uk [10]
Low frequency, low amplitude, or both.
4 0
3 years ago
Use the scale drawing to find the distance represented by AB
Andre45 [30]

The answer to your question is AB is 50 kilometers.

50 kilometers

5 0
3 years ago
Read 2 more answers
Other questions:
  • A motorcycle is following a car that is traveling at constant speed on a straight highway. Initially, the car and the motorcycle
    13·1 answer
  • Which astronomer gave his name to a telescope launched into space in 1990?
    11·1 answer
  • How do you write a hypothesis
    9·1 answer
  • Considering the factors that affect gravitational pull, in which location would the gravitational pull from the earth be SMALLES
    10·1 answer
  • Physics questions please help me
    13·1 answer
  • What is the wavelength of a wave with a frequency of 330 Hz and a speed of
    12·1 answer
  • The temperature at which the vapor pressure of a liquid equals the environmental pressure surrounding the liquid is best defined
    8·2 answers
  • an audio CD has a diameter of 120 mm and spins at up to 540 rpm. When a CD is spinning at its maximum rate, how much time is req
    12·1 answer
  • The amount of matter in an object is called its
    14·2 answers
  • Find the refractive index of a medium<br> having a velocity of 1.5 x 10^8*
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!