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
artcher [175]
3 years ago
11

A 63.0 kg astronaut is on a spacewalk when the tether line to the shuttle breaks. the astronaut is able to throw a spare 10.0 kg

oxygen tank in a direction away from the shuttle with a speed of 12.0 m/s, propelling the astronaut back to the shuttle. assuming that the astronaut starts from rest with respect to the shuttle, find the astronaut's final speed with respect to the shuttle after the tank is thrown.
Physics
2 answers:
Llana [10]3 years ago
6 0

There are other forces at work here nevertheless we will imagine it is just a conservation of momentum exercise. Also the given mass of the astronaut is light astronaut.

The solution for this problem is using the formula: m1V1=m2V2 but we need to get V1:

V1= (m2/m1) V2


V1= (10/63) 12 = 1.9 m/s will be the final speed of the astronaut after throwing the tank. 

Tanya [424]3 years ago
4 0

Answer:

The astronaut's final speed with respect to the shuttle after the tank is thrown is 1.9 m/s.

Explanation:

It is given that,

Mass of the astronaut, m = 63 kg

Mass of the oxygen tank, m' = 10 kg

Speed of the oxygen tank, v' = 12 m/s

Let v is the astronaut's final speed with respect to the shuttle after the tank is thrown. Initial momentum of the system i.e. astronaut + oxygen tank will be equal to 0. Using the conservation of momentum as :

p_i=p_f

0=mv+m'v'

v=\dfrac{m'v'}{m}

v=-\dfrac{10\times 12}{63}

v = -1.9 m/s

So, the astronaut's final speed with respect to the shuttle after the tank is thrown is 1.9 m/s.

You might be interested in
________ found that electric and magnetic energy move in waves.
GrogVix [38]

<span>James Clerk Maxwell is the answer</span>
8 0
4 years ago
What is the mass of a 2 kg object on the Earth and on the moon?
zubka84 [21]

Answer:

Same

Explanation:

Mass is the quantity of matter in a certain object.

WHEREVER you take a 2kg object, the mass will remain 2kg. All that changes is the Weight ..Weight the force which the centre of a Planet uses to pull everything towards itself.

On earth, it is 9.81 whereas on the Moon it is 1.6

7 0
3 years ago
The number of protons in a neutral atom equals the number of
Dmitrij [34]

Answer: Electrons

Explanation: For a neutral atom the number of positively charged protons inside the nucleus must be equal to the number of electrons in the orbital shells. Both charges will cancel out having a charge of 0 which makes an atom electrically neutral.

8 0
4 years ago
Does a resulting force cause acceleration? true or false?
Vesnalui [34]
True...<span>A moving </span>object<span> with a zero </span>resultant force<span> keeps moving at the same speed and in the same direction. If the </span>resultant force<span> acting on an </span>object<span> is not zero, a stationary </span>object<span> begins to </span>accelerate<span> in the same direction as the </span>force. A movingobject<span> speeds up, slows down or changes direction</span>
7 0
4 years ago
If two charged objects in a laboratory are brought to a distance of 0.22 meters away from each other. What is
zysi [14]

Answer:

q_2=2.47\times 10^{-4}\ C

Explanation:

The charge on one object, q_1=9.9\times 10^{-5}\ C

The distance between the charges, r = 0.22 m

The force between the charges, F = 4,550 N

Let q₂ is the charge on the other sphere. The electrostatic force between two charges is given by the formula as follows :

F=\dfrac{kq_1q_2}{r^2}\\\\q_2=\dfrac{Fr^2}{kq_1}\\\\q_2=\dfrac{4550\times (0.22) ^2}{9\times 10^9\times 9.9\times 10^{-5}}\\\\q_2=2.47\times 10^{-4}\ C

So, the charge on the other sphere is 2.47\times 10^{-4}\ C.

7 0
3 years ago
Other questions:
  • Sonic boom from a plane is an example of a shockwave. Give another example where a shockwave is produced
    12·1 answer
  • Two shuffleboard disks of equal mass, one orange and the other yellow, are involved in an elastic, glancing collision. The yello
    7·1 answer
  • A cylindrical tank has a tight-fitting piston that allows the volume of the tank to be changed. The tank originally contains air
    13·1 answer
  • A beam of light of two different wavelengths enters a pane of glass 3.2 mm thick at an angle of incidence of 59°. The indices of
    7·1 answer
  • How is electromagnetic energy from the microwave transformed into heat energy
    10·2 answers
  • Why does an ice cube melt in your hand? Question 3 options: The ice remains in a solid state even though heat is applied The tem
    9·2 answers
  • If a 2kg ball has and initial velocity of
    10·1 answer
  • Which of the following phenomena suggest that light may be transverse wave
    15·1 answer
  • What do you mean by kinetic energy and potential energy ?
    10·1 answer
  • How far apart would you have to place the poles of a 1. 5 v battery to achieve the same electric field?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!