Answer:
2440.24 J
Explanation:
Moment of inertia, I1 = 5 kg m^2
frequency, f1 = 3 rps
ω1 = 2 x π x f1 = 2 x π x 3 = 6 π rad/s
Moment of inertia, I2 = 2 kg m^2
Let the new frequency is f2.
ω2 = 2 x π x f2
here no external torque is applied, so the angular momentum remains constant.
I1 x ω1 = I2 x ω2
5 x 6 π = 2 x 2 x π x f2
f2 = 7.5 rps
ω2 = 2 x π x 7.5 = 15 π
Initial kinetic energy, K1 = 1/2 x I1 x ω1^2 = 0.5 x 5 x (6 π)² = 887.36 J
Final kinetic energy, K2 = 1/2 x I2 x ω2^2 = 0.5 x 3 x (15 π)² = 3327.6 J
Work done, W = Change in kinetic energy = 3327.6 - 887.36 = 2440.24 J
I believe the answer is D) none of these patterns effect
Answer:
d) excessively talkative in a rambling, roundabout manner
Explanation:
The problems caused by urbanization are;
- loss of aesthetic and cultural space
- increased high temperatures (heat-island effect)
- increased storm-water run-off, flooding, and pollution of waterways
<h3>What is Urbanization?</h3>
Urbanization is defined as the process whereby large numbers of people become permanently concentrated in relatively small areas thereby forming cities. The features that depict the problems caused by urbanization are;
- loss of aesthetic and cultural space
- increased high temperatures (heat-island effect)
- increased storm-water run-off, flooding, and pollution of waterways
Read more about Urbanization at; brainly.com/question/496631
