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
Zepler [3.9K]
3 years ago
15

When does a nebula become a star?

Physics
1 answer:
pashok25 [27]3 years ago
7 0
When the contracting gas and dust from nebula become so dense and hot that nuclear fusion starts
You might be interested in
What do you measure when you measure an object’s mass?
Effectus [21]

Answer:

how much space it takes up in the world

Explanation:

1) Mass is a measurement of the amount of matter something contains, while Weight is the measurement of the pull of gravity on an object. 2) Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.

3 0
3 years ago
What statements correctly describe theories
elixir [45]

Theories result from several repeated experiments.

Theories explain observations and hypotheses.

Theories may be revised over time.

Explanation:

Scientific theories are purely explanations into an observation and hypothesis. The are general binding explanations that have been developed from several tests.

  • Theories are products of different stages of experiments in their own regard.
  • For a theory to be accepted by the scientific community, its hypothesis statement must be:
  1. Testable
  2. Repeated
  3. Falsifiable
  • Based on new evidence, a theory may be revised with time. One of such is the Dalton's atomic theory with a modern atomic theory version now.

Learn more:

Experiments brainly.com/question/5096428

#learnwithBrainly

8 0
3 years ago
Three systems of two charged particles are shown below. All the particles have the same mass,
Len [333]

Answer:D

Explanation:

5 0
3 years ago
While i was jogging, i wad able to run 5 miles in thirty minutes. from this information, we can determine my?
Llana [10]
You can only determine the speed since the only info we know is how much you ran in how long of a time.
7 0
3 years ago
Read 2 more answers
A car traveling at a speed of 30.0 m/s encounters an emergency and comes to a complete stop. how much time will it take for the
Vedmedyk [2.9K]

Answer:7.5seconds

Explanation:

V=0 u=30m/s a=-4m/s^2

t=(v-u)/a

t=(0-30)/-4=-30/-4

t=7.5second

8 0
3 years ago
Other questions:
  • A motorist is traveling at 20 m/s. He is 60 m from a stoplight when he sees it turn yellow. Is reaction time, before stepping on
    7·1 answer
  • Which wave property is directly related to energy
    11·2 answers
  • A 10-cm-long spring is attached to theceiling. When a 2.0 kg mass is hung from it,the spring stretches to a length of 15 cm.a.Wh
    14·2 answers
  • Question 5
    6·1 answer
  • A pot of water is heated on an electric stove top and begins to boil. Which
    8·2 answers
  • What part of the Milky Way allows for determination of its rotational direction? A. Celestial body B. Galactic body C. Galactic
    13·2 answers
  • A soft drink (mostly water) flows in a pipe at a beverage plant with a mass flow rate that would fill 220 0.355 - L cans per min
    13·1 answer
  • I throw a thin uniform circular disc (think of a frisbee) into the air so that it spins with angular velocity ω about an axis wh
    7·1 answer
  • The ____ of emitted light depends directly on the energy between the two orbits and this determines the color of the light
    8·1 answer
  • If a bender can be used to bend 3/4-inch rmc, then it can also be used to bend__________emt.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!