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
Sindrei [870]
3 years ago
10

The feeling of weightlessness occurs because _____________________.

Physics
2 answers:
lbvjy [14]3 years ago
8 0

Answer:

The feeling of weight is one of compression.

Explanation:

All your body is being pulled down by gravity yet your feet ( if standing) or your back or something is holding you up.  

Your body is compressed by the PAIR of forces and it is that compression that you feel.  

So when you remove the supporting force then all the body is free to move together and there is no compression within you.  

Hence you perceive no weight.

soldier1979 [14.2K]3 years ago
6 0

Answer:

The feeling of weightlessness occurs because of the absence of a force of support on your body.

Explanation:

In the cases in which your body's experimenting "free fall", that is to say, when it's falling at the same acceleration than gravity, it means your body lacks support. On the other hand, the sensation of having weight is produced because you stand on the floor or float in water, perceiving its support.

You might be interested in
Kg. m
Irina18 [472]

Answer: 0.00211

Explanation:

7 0
3 years ago
Conditional probability involves events that are independent. true or false?
kiruha [24]
Its false I got It right .


3 0
3 years ago
A mother hawk screeches as she dives at you. You recall from biology that female hawks screech at 785 Hz , but you hear the scre
Ludmilka [50]

Answer:

Speed of the hawk, v = 40.4 m/s

Explanation:

It is given that,

Exact frequency of the female, f = 785 Hz

Observed frequency of female, f' = 890 Hz

Speed of sound, v = 343 m/s

Let v' is the speed of the hawk. It is based on the concept of Doppler's effect. We know that when the object approaches you, its speed is given by :

f'=f(\dfrac{v}{v-v'})

890=785\times (\dfrac{343}{343-v'})

v' = 40.4 m/s

So, the speed of the hawk is 40.4 m/s. Hence, this is the required solution.

6 0
4 years ago
A brass cube, 10 cm on a side, is raised in temperature
lana [24]

Answer:

\delta L\%=22.5\%

Explanation:

<em>Assuming that the thermal expansion of brass cube occurs isotropically (i.e. equal in all the directions).</em>

Given:

  • length of the cube, l=10\ cm=0.1\ m
  • change in temperature of the cube, \Deta T=200\^{\circ}C
  • coefficient of volume expansion, \beta=57\times 10^{-6}\ ^{\circ}C^{-1}

<u>Hence volume of the cube:</u>

V=10^{-3}\ m^3

Now the volume of the cube after expansion:

\delta V=V.\beta.\Delta T

\delta V=10^{-3}\times 57\times 10^{-6}\times 200

\delta V=1.14\times 10^{-5}\ m^3

Therefore,

\delta L=0.0225\ m

<u>Now the percentage change in the edges of the cube:</u>

\delta L\%=\frac{\delta L}{L} \times 100

\delta L\%=\frac{0.0225}{0.1} \times 100

\delta L\%=22.5\%

5 0
3 years ago
QUESTION 1<br> 67.2 kilometers = how many decameters
den301095 [7]

Answer: the answer should be 6,720 decameters.

6 0
4 years ago
Read 2 more answers
Other questions:
  • What are you calculating when you measure the disorder of a system?
    13·2 answers
  • The appalachian mountains were mainly part of which nation's land claims?
    8·1 answer
  • gold has a density of 19.32g/cm^3. aluminum has a density of 2.7g/cm^3. which is heavier: 1g of gold or 1 g of aluminum? explain
    8·1 answer
  • 3. A 20 kg lawnmower is pushed by its handle, which makes a 40 degree angle with the horizontal. What
    14·1 answer
  • PLEASE HELPPP :))<br> why do ocean ridges rise above the surrounding ocean floor?
    5·1 answer
  • En un juego de béisbol, un lanzador logra
    13·1 answer
  • Find the net force it would take to accelerate an 800 Kg car at a rate of 5 m/s2
    12·1 answer
  • What is the voltage drop across the 30 ohm resistor?
    14·1 answer
  • 5. The graph in Figure 10-16 shows the force
    12·1 answer
  • The stemplot below shows the heights (in inches) of students in a class.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!