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boyakko [2]
2 years ago
9

We all have a tendency to make illusory correlations from time to time. Try to think of an illusory correlation that is held by

you, a family member, or a close friend. How do you think this illusory correlation came about and what can be done in the future to combat them?
Physics
1 answer:
Artist 52 [7]2 years ago
5 0

Answer:

Thats a personal question

Explanation:

It asks about you

(illusion is something you think is there but is not)

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) The angular acceleration of the disk is defined by ???? = 3t 2 + 12 rad/s, where t is in seconds. If the disk is originally ro
pshichka [43]

Answer:

a) \theta = 52\,rad, b) v_{A} = 44\cdot r \,\frac{m}{s}, c) a_{A,n} = 1936\cdot r\,\frac{m}{s^{2}}, a_{A,t} = 24\cdot r\,\frac{m}{s^{2}}

Explanation:

a) The angular motion is obtained by integrating the angular acceleration function twice:

\alpha = 3\cdot t^{2} + 12

\omega = t^{3} + 12\cdot t + 12

\theta = \frac{1}{4}\cdot t^{4} + 6\cdot t^{2} + 12\cdot t

The angular motion when t = 2 s. is:

\theta = \frac{1}{4}\cdot (2\,s)^{4} + 6\cdot (2\,s)^{2} + 12\cdot (2\,s)

\theta = 52\,rad

b) Let be r the distance between A and the rotation axis, measured in meters. The magnitude of the angular velocity when t = 2 s. is:

\omega = (2\,s)^{3} + 12\cdot (2\,s) + 12

\omega = 44\,\frac{rad}{s}

Finally, the magnitude of the velocity is:

v_{A} = 44\cdot r \,\frac{m}{s}

c) The angular acceleration of the disk when t = 2 s. is:

\alpha = 3\cdot (2\,s)^{2} + 12

\alpha = 24\,\frac{rad}{s^{2}}

Lastly, the normal and tangential components at point A are, respectively:

a_{A,n} = \omega^{2}\cdot r

a_{A,n} = \left(44\right)^{2}\cdot r

a_{A,n} = 1936\cdot r\,\frac{m}{s^{2}}

a_{A,t} = \alpha \cdot r

a_{A,t} = 24\cdot r\,\frac{m}{s^{2}}

6 0
2 years ago
The 75.0 kg hero of a movie is pulled upward with a constant acceleration of 2.00 m/s2 by a rope. What is the tension on the rop
lutik1710 [3]

Use Newton's second law. The net force on the hero is

∑ <em>F</em> = <em>T</em> - <em>m g</em> = <em>m</em> (2.00 m/s²)

where

• <em>T</em> = tension in the rope

• <em>m</em> = 75.0 kg = mass of the hero

• <em>g</em> = 9.80 m/s² = acceleration due to gravity

Solve for <em>T</em> :

<em>T</em> = (75.0 kg)<em> </em>(<em>g</em> + 2.00 m/s²) = 885 N

7 0
3 years ago
Plz help An X-ray technician will place a lead cloth over parts of your body when taking an X-ray to protect your cells from bei
gayaneshka [121]
Letter d. Hope it helps.
6 0
3 years ago
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Jupiter is 5.2 AU from the sun on average. How long is one year on Jupiter?
velikii [3]

Answer:

12 years

Explanation:

12 years is correct because how long is Jupiter one year is 12 years

3 0
2 years ago
What is the definition for the word energy?​
Lena [83]
Kinetic, thermal and electrical. There is more then one form of energy
4 0
3 years ago
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