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?
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The force is 5100 N which is accelerating a Ford Mustang. The mass of the car is 1700 kg.
<h3>What is force?</h3>
A force is an influence that can alter an object's motion. A force can modify the velocity of a mass item. Force is calculated in Newton.
In physics, mass is a quantitative measure of inertia, which is a fundamental property of all matter. Mass is measured in kilograms and grams.
The force is given as 5100 N
The acceleration is 3 m/s
The mass is to be calculated
F = ma
m = F / a
m = 5100 / 3
m = 1700 kg
Therefore, the mass of the car is 1700 kg.
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The workers were motivated to organize the pullman strike because the company cut their wages.
Pullman strike was resultant of reducing in compensation and terminating workers in response to a preferred currency collapse. An average pay cut was 33 percent. But on occasion, it increases to between 40% and 50%. The workforce's wage had already been reduced without the subsequent rent discounts.
The fact that the employee compensation was cut while the rent remained the same was the main reason for the Pullman strike. Beginning on May 11 of the same year, 1894, it was virtually an all-out railroad strike in the United States. As a gesture of goodwill toward the American labor movement in the midst of the crisis, President Grover Cleveland and Congress established Labor Day as a public holiday on June 28.
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Answer:
D and E
Explanation:
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