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
anygoal [31]
3 years ago
14

A protostar forms once the nebular cloud condenses and the core begins

Physics
2 answers:
Fantom [35]3 years ago
6 0
A protostar forms once the nebular cloud condenses and the core begins nuclear fusion.
enyata [817]3 years ago
4 0

Answer:

Explanation:

A protostar forms once the nebular cloud condenses and the core begins HEAT.

A protostar is a very young star that is still gathering mass from its parent molecular cloud. The protostellar phase is the earliest one in the process of stellar evolution. A protostar is the earliest stage in star formation in the universe.  When the gas cloud begins to collapse on its own weight, the core begins to heat up. The heat is due to the force of compression of the dust and gas under its gravity. When the pressure and temperatures become high enough, the hydrogen in the core begins to fuse.

You might be interested in
Many of the whales in the ocean rely upon tiny marine organisms, called plankton, for food. If all of the plankton suddenly died
exis [7]

Answer:

I believe the answer to be B.

Explanation:

Without food, the whales would die.

8 0
3 years ago
When an object (like a ball) falls, some of its___ energy changes to ___ energy, due to the law of conservation of energy
Alinara [238K]

Answer:

potential, kinetic

Explanation:

pls give brainliest :p

8 0
2 years ago
A car is driving along a road at a speed of 50 km/hr. How far will the car travel in 5 hours?​
BARSIC [14]

Answer:

I think it's 250

Explanation:

If the car is traveling 50 km/hr that means every hour, the car drives 50 km. So if you want to know how far it will go in 5 hours you do 50x5.

4 0
2 years ago
A fire helicopter carries a 700-kg bucket of water at the end of a 20.0-m long cable. Flying back from a fire at a constant spee
rodikova [14]

Answer:

F = 50636.873 N

Explanation:

given,

bucket of water =  700-kg

length of cable = 20 m

Speed  = 40 m/s

angle of the cable = 38.0°

let air resistance be = F

tension in rope be = T

T cos 38° = m×g..................(1)

T sin 38^0= \dfrac{mv^2}{l} + F..........(2)

equation (1)/(2)

tan 38^0 =\dfrac{\dfrac{mv^2}{l} + F}{mg}

       0.781=\dfrac{\dfrac{700\times 40^2}{20} + F}{700\times 9.8}

           F = 50636.873 N

Hence the force exerted on the bucket is equal to F = 50636.873 N

5 0
3 years ago
When running your engine, you cause debris, rocks and propeller blast to be directed towards people or other aircraft. Is this c
beks73 [17]

Answer:

Yes, it is reckless. This is because it is the responsibility of the pilot to make sure that the direction of the propeller blast is away from people or other aircraft and in a safe direction.

Explanation:

Yes, it is reckless to let the propeller blast face people and other aircraft. This is because it is the responsibility of the pilot to make sure that the direction of the propeller blast is away from people or other aircraft and in a safe direction. People and other aircraft can be injured by the debris and the rocks that are scattered by the engine of the aircraft.

3 0
3 years ago
Other questions:
  • Application of a biot-savart law
    13·1 answer
  • Balancing Chemical Equations
    5·2 answers
  • The acceleration of gravity on Earth is approximately 10 m/s2 (more precisely, 9.8 m/s2). If you drop a rock from a tall buildin
    12·1 answer
  • a student coils a copper wire around a bar magnet what action will cause a device to generate electricity
    14·1 answer
  • Which of the following is NOT a characteristic of an inner planet?. . A.. rocky. . B.. solid surface. . C.. near the sun. . D..
    15·2 answers
  • A 20" round duct is 275' in length. The duct is carrying 2,900 CFM at a friction loss of 0.12 inches WG per 100 feet.
    14·1 answer
  • A 6000 kg rocket is launched vertically from the ground. If the exhaust speed is 1000 m/s, how much gas must be ejected each sec
    9·1 answer
  • How does inertia explain why it is difficult to stop a moving<br> skateboard?
    10·1 answer
  • Of all the hydrogen in the oceans, 0.0300 % of the mass is deuterium. The oceans have a volume of 317 million mi³.(a) If nuclear
    7·1 answer
  • How an electric car might still run on fossil fuel
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!