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
andreev551 [17]
3 years ago
11

Since all objects are ‘weightless’ for an astronaut in orbit, is it possible for astronauts to tell whether an object is heavy o

r light? Think about it, think of newton’s laws, the equations and then explain your reasoning.
Physics
2 answers:
ivanzaharov [21]3 years ago
4 0
W=gm
where g - gravitation 
m - mass
w - weight
as gravitation equals to zero, multiplying by 0 gives W=0
It is not possible to tell whether and object is heavy or light 

ValentinkaMS [17]3 years ago
4 0
Well, while they're in orbit, nothing is 'heavy' and nothing is 'light'.
They're all weightless.

I think you're really asking:  Can the astronaut tell which objects will be
heavy and which ones will be light if they go back down to Earth ?

The answer is a resounding 'Sure' !

The weight of an object on Earth is (its mass) x (acceleration of gravity).
So the objects with a lot of mass will be heavy, and the objects with less
mass will be lighter.

How can the astronaut determine the mass of the object hanging there
in the air in front of him ? 
All he has to do is give it a push.  It'll accelerate away from him (and he
will accelerate away from the object). 
Newton's 2nd law tells us that  F=mA, so the acceleration will be

                             (the force he exerts) / (the mass).

An object with small mass will zip away from him, and it'll be light
down on the surface. 

An object with large mass will accelerate slightly, start moving slowly,
and it'll be heavy down on the surface.
You might be interested in
what does it mean for data to be reproducible? how would you conduct an experiment in such a way as to get data reproducible?
PIT_PIT [208]
Reproducible is the term where your answers are similar to other groups. If every other group has similar results as yours (only if you use the same measurements) your results are reproducible. If your results are different to every other group your results aren't reproducible.  <span />
3 0
3 years ago
Read 2 more answers
What is the de Broglie - equation​
fomenos

Answer:

is this it?

Explanation:

λ = h/mv, where λ is wavelength, h is Planck's constant, m is the mass of a particle, moving at a velocity v. de Broglie suggested that particles can exhibit properties of waves.

8 0
3 years ago
what happens to the temperature of water in a cup when the average kinetic energy of the water particles decrease
Xelga [282]

Answer: Well the kinetic energy decreasesTherefore, the thermal energy of an object decreasesas its temperature decreases.

4 0
3 years ago
Consider a satellite in a circular orbit around the Earth. If it were at an altitude equal to twice the radius of the Earth, 2RE
Elenna [48]

Answer:

v=\sqrt{\frac{gR_E}{2}}

Explanation:

Satellites experiment a force given by Newton's Gravitation Law:

F=\frac{GMm}{r^2}

where M is Earth's mass, m the satellite's mass, r the distance between their gravitational centers and G the gravitational constant.

We also know from Newton's 2nd Law that <em>F=ma, </em>so putting both together we will have:

ma=\frac{GMm}{r^2}

a=\frac{GM}{r^2}

If we are on the surface of the Earth, the acceleration would be g and r=R_E (Earth's radius):

g=\frac{GM}{R_E^2}

Which we will write as:

gR_E^2=GM

If we are on orbit the acceleration is centripetal (a=\frac{v^2}{r}), so we have:

\frac{v^2}{r}=a=\frac{GM}{r^2}=\frac{gR_E^2}{r^2}

v^2=\frac{gR_E^2}{r}

v=\sqrt{\frac{gR_E^2}{r}}

And if this orbit has a radius r=2R_E we have:

v=\sqrt{\frac{gR_E^2}{2R_E}}=\sqrt{\frac{gR_E}{2}}

3 0
3 years ago
Read 2 more answers
4. Protons and neutrons are held together to form this _________
Olenka [21]

Answer:

strong nuclear force.

Explanation:

hope this helps you!!

8 0
2 years ago
Other questions:
  • Which statement best describe nucleic acids
    12·2 answers
  • How much energy from the sun actually reaches the corn answer?
    5·2 answers
  • Find the order of magnitude of your age in seconds
    9·1 answer
  • Given: Q1 = +10 uc = 1.0 x 10-5C
    9·1 answer
  • Is a force pushing up on an object as gravity is pulling down?
    12·1 answer
  • How would i solve these problems, nobody in my class understands and there is a substitute
    9·1 answer
  • What differences does adult and infant skulls have in number of bones,composition
    12·1 answer
  • Which of the following is a simple machine? A. wedge B. meat grinder C. car D. bicycle
    14·1 answer
  • free p-o-i-n-t-s if you done the last one dont do this one dont do this one yet ill tell you when you can do it bc im trying to
    14·1 answer
  • Which of the following statements about electromagnetic radiation it true? A.electromagnetic waves with long wavelength are more
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!