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
AnnyKZ [126]
3 years ago
12

When a rocket is launched into the sky, what force must it overcome?

Physics
2 answers:
Kobotan [32]3 years ago
4 0

Answer:

B) gravity

Explanation:

For a rocket to launch, it must overcome the force of gravity acting on it. For this, it produces an upward force (thrust) that "fights" against the force that is pulling it downward (gravity).

To produce the buoyant force, the rocket engines produce combustion gases, usually using liquid hydrogen as fuel and liquid oxygen as the oxidizer, these gases are expelled by the rocket nozzles, pushing against the upper wall of the nozzles. The relationship between the forces can be summed up by Newton's third law, in which every action causes a reaction of equal force and direction and opposite direction, the gases are expelled with such a force that it exceeds the force of the rocket, propelling it upwards .

Brut [27]3 years ago
3 0
The answer is b 
 hope this helped
You might be interested in
Which word in the sentence is a gerund?
OleMash [197]
A gerund usually ends wit -ing, so we must find the word that includes that.

Loading includes ing at the end.

Final answer: b. loading
8 0
3 years ago
Read 2 more answers
Explain what is the meaning of positive connotation and negative connotation.
uysha [10]
That it is a good one and bad one that's what I think hope it helps!:)
7 0
3 years ago
Read 2 more answers
A 3.20 kg block starts at rest and slides a distance d down a frictionless β = 30.0 ◦ incline, where it runs into a spring with
Virty [35]

Answer:

Explanation:

a ) work done by gravitational force

= mg sinθ ( d + .21)

Potential energy stored in compressed spring

= 1/2 k x²

= .5 x 431 x ( .21 )²

= 9.5

According to conservation of energy

mg sinθ ( d + .21)  = 9.5

3.2 x 9.8 x sin 30( d + .21 ) = 9.5

d = 40 cm

b )

As long as mg sin30 is greater than kx ( restoring force ) , there will be acceleration in the block.

mg sin30 = kx

3.2 x 9.8 x .5 = 431 x

x =  3.63 cm

When there is compression of 3.63 cm in the spring , block will have maximum velocity. there after its speed will start decreasing.

7 0
3 years ago
6
Arturiano [62]

Explanation:

A light bulb changes electrical energy into <em>heat energy and light energy .</em>

4 0
3 years ago
PLS HELP ME
NeTakaya
The answer is true...
4 0
3 years ago
Other questions:
  • The transfer of energy by electromagnetic
    11·2 answers
  • Which factors could be potential sources of error in the experiment? check all that apply.
    11·2 answers
  • A 50 Ohm resistance causes a current of 5 milliamps to flow through a circuit connected to a battery. What is the power in the c
    6·2 answers
  • What is denser a iron sheet or iron powder??
    8·1 answer
  • List at least three things that can happen as plate spread apart.
    9·1 answer
  • 4–72 A person puts a few apples into the freezer at 215°C to cool them quickly for guests who are about to arrive. Initially, th
    7·1 answer
  • The ability of atoms to attract electrons from surrounding atoms is called
    11·2 answers
  • Calculate the parallel component of the weight of the object on the inclined plane below.
    7·1 answer
  • Intermolecular distance is the distance between the particles that make up matter. The graph below compares the intermolecular d
    10·1 answer
  • The acceleration of positive performing SHM is 12cm/sec at distance of 3cm from the mean position its time period is?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!