Answer:
to explain how the conference would benefit the writer to apply for a position to work at the conference
"If this month is September, then next month ends in the letter r." This is a valid converse statement.
The converse of a conditional statement is made once the hypothesis and conclusion are reversed. Likewise, the converse statement, “If the grass is wet, then it's raining” is logically such as the inverse statement, “If it's NOT descending, then the grass isn't wet.” These relationships are significantly useful in mathematics courses once you are asked to prove theorems supported definitions that are already best-known.
This converse statement is valid as after the month of September, the month of October comes and it ends with letter 'r'.
To learn more about Converse Statement here
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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
