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
creativ13 [48]
3 years ago
11

In space movies, spacecrafts explode and oxygen is needed for a fire to start. Why is it wrong? What would really happen?

Physics
1 answer:
Triss [41]3 years ago
6 0

Answer:

Hey

The reason these "space movies" are wrong is because objects in "space" (not in a "space" craft) can't catch on fire because there is no air in "space".

You might be interested in
Which soil is best for growing most plants?
baherus [9]
I think sandy loam.
5 0
3 years ago
Read 2 more answers
A variable that is changed by the researcher is called ___
soldier1979 [14.2K]
An independent variable :)) hope I helped
5 0
3 years ago
Tĩnh lực tĩnh điện [lực cu lông] giữa 2 điện tích điểm q1,q2 biết q1=2.10-9 q2=4.10-9 r=3cm
Anettt [7]
  • q1=2×10^{-9}C
  • q2=4×10^{-9}C
  • Radius=3cm=0.3m

Using coulmb's law

\\ \bull\tt\dashrightarrow F=k\dfrac{q1q2}{r^2}

\\ \bull\tt\dashrightarrow F=8.98\dfrac{2\times 10^{-9}\times 4\times 10^{-9}}{(0.3)^2}

\\ \bull\tt\dashrightarrow F=8.98\dfrac{8\times 10^{-18}C^2}{0.09m^2}

\\ \bull\tt\dashrightarrow F=\dfrac{71.84\times 10^{-18}C^2}{0.09m^2}

\\ \bull\tt\dashrightarrow F=798.2\times 10^{18}Nm^2/C^2

\\ \bull\tt\dashrightarrow F=7.9\times 10^{16}Nm^2/C^2

6 0
3 years ago
John pushes his bed to the left overcoming the force of friction. On the free-body diagram below, which force represents the fri
mamaluj [8]

Answer:

<em>Force B</em>

Explanation:

<u>Friction Force </u>

It's a force that appears when an object is tried to move on a rough surface. There are two cases: when the object is at rest, we have the friction static coefficient and when the object is already moving, we have the dynamic coefficient. The static coefficient is usually greater than the second because it's harder to overcome the friction when the object is at rest.

We are told that John pushes the bed to the left with enough force to overcome the force of friction. If the movement is intended to be to the left side, the friction force appears to the right, since it always opposes to the movement. Thus the force B is the one who represents the friction force in this situation

6 0
4 years ago
Read 2 more answers
A beam of protons is directed in a straight line along the +z direction through a region of space in which there are crossed ele
IceJOKER [234]

Answer:

B = 7.6 T   direction of + x

Explanation:

For the proton beam to continue in the same direction the electric and magnetic forces must be equal

              F_{m} - F_{e} = 0

              F_{m} = F_{e}

              Fm = q E

             

The electric force is in the direction of the electric field because it is the charge of the positive proton, the electric force goes in the direction of –y, therefore, the magnetic force cancels this force must go in the direction of + y

 The magnetic force is

             F_{m} = q v x B = q v B sin θ

             θ = 90

             B = q E / q v

             B = E / v

             B = 800/105

             B = 7.6 T

To find the direction of the magnetic field we use the right hand rule, the thumb goes in the direction of the proton velocity, the fingers extended in the direction of the magnetic field and the palm is the direction of force, for a positive charge.

Thumb goes in the direction of the + z axis

Palm in the direction of +y

Fingers point in the direction of + x

7 0
3 years ago
Other questions:
  • Whats the height and temp for tropopause​
    10·1 answer
  • All objects at any temperature emit radiant energy true or false
    6·2 answers
  • Suppose two comets, comet A and comet B, were orbiting the Sun, having the same average orbital radii. If comet A had a higher e
    5·1 answer
  • Two iron balls of different mass are heated to 100°C and dropped in water. If the same amount of heat is lost by the two balls t
    7·2 answers
  • In a step down transformer, voltage steps down. What factor must go up?
    10·1 answer
  • A boy and a girl are on a spinning merry-go-round. The boy is at a radial distance of 1.2 m from the central axis; the girl is a
    9·1 answer
  • 3. Some guitarists like the feel of a set of strings that all have the same tension. For such a guitar, the G string (196 Hz) ha
    13·1 answer
  • Pam rubs a balloon on her head to generate a static charge. She holds the balloon up against a wall. Which of the following desc
    14·1 answer
  • if the spring balance with the iron ball is relaesed what reading will the spring balance record and wht
    7·1 answer
  • Radiation in the ultraviolet region of the electromagnetic spectrum is quite energetic. It is this radiation that causes dyes to
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!