Answer:
a & c but i think you should try c
Explanation:
The acceleration of a different speck of dust is 40 m/s.
Since the radius is been given as double and angular velocity will be constant, we can calculate the centripetal acceleration as
a = (2r)ω²
If we substitute the given values of r= 2r , and ω²= 20m/s.
Then we have
Therefore, acceleration of a different speck of dust is 40 m/s.
<h3>What is centripetal acceleration?</h3>
centripetal acceleration can be regarded as acceleration of a body that is traversing a circular path.
CHECK THE COMPLETE QUESTIONS;
A speck of dust on a spinning dvd has a centripetal accelera- tion of 20 m/s2.
a. what is the acceleration of a different speck of dust that is twice as far from the center of the disk?
Learn more about centripetal acceleration at;
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If a stock market crash were to occur, then stockholders would lose some, if not all oftheir money. This means that companies are not able to generate investment money forexpansion. Companies then might experience lower profits because people do not have<span>enough money to buy goods, and then they may have to lay-off their workers.</span>
Translation is what best describes the transformation of the marching band when they enter the gym and marches across the gym without turning.
<h3>Who are the
Marching band?</h3>
Marching band are group of instrumental musicians that perform on instrument while marching for purpose of entertainment or competition
Hence, the term "Translation" best describes the transformation of the marching band when they enter the gym and marches across the gym without turning.
Therefore, the Option D is correct.
Read more about Translation
<em>brainly.com/question/25998325</em>
Around 1700, a sequence of events led to today's highly globalized economy and unequal global wealth distribution. The sequence is as follows:
- Virtually the entire world lives at a subsistence level.
- Dramatic increase in food production in Europe due technological advances in farming lead.
- Factory production replaces European cottage industries.
- Western colonialism at its peak transfers wealth from the colonies to Europe.
- Former colonies of Europe struggle economically post independence
The economy in 1700s was based on mainly farming, fur trading, ship production, local production.
Learn more revolution in 1700's here:
brainly.com/question/11900704
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