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
ella [17]
4 years ago
8

A 68.5kg astronaut floating motionless next to the space station throws a 2.25kg tool away from her at 3.20m/s. With what speed

and direction will the astronaut begin to move?

Physics
1 answer:
valkas [14]4 years ago
5 0

Answer:

-0.105 m/s

Explanation:

Given that

Mass of the astronaut, m(a) = 68.5 kg

Mass of the tool, m(t) = 2.25 kg

Speed of the tool after it is thrown, v(t) = 3.20 m/s

We know that momentum of a particle,

p = mv

See the attachment for calculations

Therefore, the speed is 0.105 m/s and it moves in the opposite direction.

You might be interested in
What is the role of the midbrain, and which part of the midbrain is important for arousing the forebrain?
Rainbow [258]

Answer:

The fore-brain consists of the cerebrum, thalamus, and hypothalamus. Mid-brain relays information between fore-brain and hind-brain. Mid-brain plays important role in developing motor functions like eye movement, auditory functions and visual processing.  The crus cerebri connects the cerebral hemispheres to the cerebellum, contains a portion having a network of neurons that is responsible for arousal and alertness.

6 0
3 years ago
If the earth were twice the distance from the sun that it is now, the gravitational force exerted on it by the sun would be: a)
devlian [24]

Answer:

a) 1/4 what it is now

Explanation:

As we know that force of gravitation between two planets at some distance "r" from each other is given as

F_g = \frac{Gm_1m_2}{r^2}

now since we know that if the distance between Earth and Sun is changed

So the force of gravity will be given as

\frac{F_g'}{F_g} = \frac{r_1^2}{r_2^2}

now we know that the distance between sun and earth is changed to twice the initial distance between them

so we have

r_2 = 2r_1

so new gravitational force between sun and earth is given as

F_g' = \frac{r_1^2}{(2r_1)^2}F_g

F_g' = \frac{1}{4}F_g

4 0
4 years ago
Two very quick questions!!
stepladder [879]
<span>The weight lifted by a machine to the applied force on a machine is called mechanical advantage. This is written as Mechanical advantage, M. A, = load(weight)/effort. So for 1) M.A = 2 and load = 2, 000lb = 8896.446N. So 2 = 8896.446/ effort Effort = 8896.446/2 = 4448.48 Similarly for M.A of 2, 000, 000 we have Effort = 8896.446/ 2, 000, 000 = 0.004448</span>
8 0
3 years ago
Read 2 more answers
Two Mississippi companies, Howard Industries and Kuhlman Electric Company, are responsible for most of the transformers and powe
yanalaym [24]
I  think b but  im not sure just helping

5 0
3 years ago
Read 2 more answers
What type of energy is cracking an egg
Alex17521 [72]
It is Kinetic energy
6 0
3 years ago
Other questions:
  • An energy pyramid illustrates that energy in the form of _____ is lost to the surroundings as it's passed from one organism to t
    10·1 answer
  • How do you convert mass to weight and visa versa
    7·2 answers
  • A 15.0-gram lead ball at 25.0°C was heated with 40.5 joules of heat. Given the specific heat of lead is 0.128 J/g∙°C, what is th
    8·1 answer
  • What is the phase shift , in degrees, of a combination resistive, capacitive, and inductive load if the phase angle of the capac
    11·1 answer
  • Mass is transferred from a normal star in a close binary system toward a white dwarf. The material that is transferred to the wh
    10·1 answer
  • A cannon fires a 0.2 kg shell with initial velocity vi = 9.2 m/s in the direction θ = 46 ◦ above the horizontal. The shell’s tra
    5·1 answer
  • A gas heated to millions of degrees would emit
    15·1 answer
  • What do you call this item?(it’s a hat)
    6·2 answers
  • A bus travels at a constant speed. it stops for a short time and then travels at a higher constant speed. draw a distance-time g
    8·1 answer
  • The body is subjected to a force of 0,4 N m with a shoulder of 5 cm. What is the magnitude of this force?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!