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
olga55 [171]
2 years ago
13

Why doesn’t a rocket in space need to use its engine to keep it moving??? Please help!

Physics
2 answers:
Studentka2010 [4]2 years ago
7 0
Every action produces an equal and opposite reaction. When a rocket shoots fuel out one end, this propels the rocket forward
kupik [55]2 years ago
7 0

Answer:

Every action produces an equal and opposite reaction. When a rocket shoots fuel out on end, this will propel the roclet forward and no air is required. Roclets do not stop and neither do spacecrafts but they do reduce their speed. Objects will slow down in space but they won't necessarily stop. So the answer to your question is once the rocket is launched from Earth, it will have other substances to keep it moving.

You're welcome :)

You might be interested in
A proton, an alpha particle (a bare helium nucleus), and a singly ionized helium atom are accelerated through a potential differ
ra1l [238]

Answer:

The correct question is:

"Find the energy each gains"

The energy gained by a charged particle accelerated through a potential difference is given by

\Delta U = q\Delta V

where

q is the charge of the particle

\Delta V is the potential difference

For a proton,

q=+e=1.6\cdot 10^{-19}C

And since \Delta V=100 V

The energy gained by the proton is

\Delta U=(1.6\cdot 10^{-19})(100)=1.6\cdot 10^{-17}J

For an alpha particle,

q=+2e=3.2\cdot 10^{-19}C

Therefore, the energy gained is

\Delta U=(3.2\cdot 10^{-19})(100)=3.2\cdot 10^{-17}J

Finally, for a singly ionized helium nucleus (a helium nucleus that has lost one electron)

q=+e=1.6\cdot 10^{-19}C

So the energy gained is the same as the proton:

\Delta U=(1.6\cdot 10^{-19})(100)=1.6\cdot 10^{-17}J

6 0
3 years ago
Estimate how far apart the rays of deepest red and deepest violet light are as they exit the bottom surface. assume nred = 1.57
Harlamova29_29 [7]
We begin by noting that the angle of incidence is the one that's taken with respect to the normal to the surface in question. In this case the angle of incidence is 30. The material is Flint Glass according to the original question. The refractive indez of air n1=1, the refractive index of red in flint glass is nred=1.57, finally for violet in the glass medium is nviolet=1.60. Snell's Law dictates:
n_1sin(\theta_1)=n_2sin(\theta_2)
Where \theta_2 differs for each wavelenght, that means violet and red will have different refractive indices in the glass.
In the second figure provided details are given on which are the angles in question, \Delta x is the distance between both rays.
\theta_{2red}=Asin(\frac{sin(30)}{1.57})\approx 18.5705
\theta_{2violet}=Asin(\frac{sin(30)}{1.60})\approx 18.21
At what distance d from the incidence normal will the beams land at the bottom?
For violet we have:
d_{violet}=h.tan(\theta_{2violet})\approx 0.0132m
For red we have:
d_{red}=h.tan(\theta_{2red})\approx 0.0134m
We finally have:
\Delta x=d_{red}-d_{violet}\approx2.8\times10^{-4}m


6 0
3 years ago
How much force is needed to stop a 4000 kg truck moving at 8 m/s in 0 2 seconds?​
maksim [4K]

Answer:

32000 N

Explanation:

Force Calculater

8 0
3 years ago
What is the centripetal acceleration of the earth as it travels around the sun when Earth has an orbital radius of 1.5 x 10^11 m
masya89 [10]

Answer: 0.0058 m/s^{2}

Explanation:

Centripetal acceleration a_{C} is calculated by the following equation:

a_{C}=\frac{V^{2}}{r}

Where:

V=29.7 \frac{km}{h} \frac{1000 m}{1 km}=29700 m/s is the Earth's orbital speed

r=1.5(10)^{11} m is the orbital radius

a_{C}=\frac{(29700 m/s)^{2}}{1.5(10)^{11} m}

a_{C}=0.0058 m/s^{2}

4 0
3 years ago
!!!!HURRY 30 POINTS!!!!
Nataly_w [17]
The anwser is C flooding
3 0
3 years ago
Other questions:
  • An airplane is heading due south at a speed of 600 km h. If a wind begins blowing from the
    11·1 answer
  • Which of the following is a positive statement?
    8·1 answer
  • Which phase of matter has the MOST Kinetic Energy?
    10·2 answers
  • What is the wave of depolarization called?
    13·1 answer
  • Scientists in a particular field strive for the same quality of work because they know their peers will be reviewing their scien
    13·2 answers
  • A bicycle pedal is pushed straight downwards by a foot with a 16 Newton force. The shaft of the pedal is 20 cm long. If the shaf
    6·1 answer
  • (PLEASE HELP) Which of the following is the name for two or more types of atoms that are chemically bonded together?
    9·2 answers
  • How do I figure out 7.68+3.18÷12=​
    14·1 answer
  • Explain why people who use the drug in the following scenario might have potential health risks.
    5·2 answers
  • A ball of mass 45kg thrown upward with a velocity of 40m/s
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!