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Arada [10]
3 years ago
14

Describe free fall and weightlessness ?​

Physics
1 answer:
yaroslaw [1]3 years ago
8 0

weightlessness is the complete or near complete absense of the sensation of weight.

when in freefall,the only force acting upon your body is the force of gravity a noun contact force.since the gravity cannot be felt without any other opposing forces,you would have no sensation of it.you would feel weightless when in a state of freefall.

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What is the measure of disorder in a system called? A. efficiency B. Enthalpy C. Work D. Entropy
lorasvet [3.4K]
D.) Entropy
Entropy is the measure of disorder in the universe.
7 0
3 years ago
Read 2 more answers
A penny rides on top of a piston as it undergoes vertical simple harmonic motion with an amplitude of 4.0cm. If the frequency is
nadezda [96]

Answer:

in the downward movement of the movement when the constant is lost

Explanation:

When the coin is on the piston it has a relationship given by

       a = d²x / dt²

the piston position is

      x = A cos wt

      a = - A w² cos wt

the maximum acceleration is

     a = - A w²

When the piston raises the acceleration of gravity and that of the piston go in the same direction, when the piston descends they relate it is contrary to gravity, therefore when the frequency increases, the point where the acceleration of the piston is greater than gravity arrives and the coin loses contact.

The point where you lose contact is

      a = g

      g = A w²

In short, in the downward movement of the movement when the constant is lost

7 0
3 years ago
2. A small car has a mass of 890 kg. What is its weight? (Hint: remember the definition of weight).
Dafna1 [17]

What is the weight? The weight of a 890 kg car is:

8727.9185 newtons

or

0.981057067 tons force

or

31393.8261 ounces force

Hope that helps! I apologize if it does not answer your question!

I used this site: <u><em>https://www.sensorsone.com/mass-to-weight-calculator/</em></u>

3 0
3 years ago
I need help with this.
madreJ [45]

Answer:

A.The new discovery might cause the theory to be dismissed since it contradicts it.

Or

D.The new discovery might further deny the theory since it presents evidence that contradicts it.

Itl be hard for them to decide you know, since this bigbang theory by darwin is widespread and cant be easily opposed..

_Askmeanything2♡

4 0
3 years ago
I’m the absence of friction,gravity and all other external forces what kind of speed will an object display if it travels from t
Natali [406]
Velocity Im pretty sure
4 0
3 years ago
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