Answer: PE = 800j, KE = 800J
Explanation:
To calculate the potential energy, we use the formula
Potential Energy = Mgh
M = 20kg, g = 10m/sˆ2 , h = 4m
=20 × 10 × 4
=800J
At the maximum height S = 4 and the initial velocity u = 0 The acceleration g = 10m/sˆ2
Using the third equation of motion
vˆ2 = uˆ2 + 2as
= 0ˆ2 + 2 × 10 × 4
vˆ2 = 80
Kinetic Energy (KE) is given by
KE = ½ mvˆ2
= ½ × 20 × 80
=800J
Answer:
Interest rates, inflation, unemployment, economic growth, and other factors that affect the general health and well-being of a nation or the regional economy of an organization.
According to the research studies, the correlation between high intelligence and leadership is "<u>moderate; having a leader who is smarter, but not too smart, works best."</u>
This is because the research studies conducted revealed that leaders with a higher IQ to 120 have positive outcomes when it comes to leadership effectiveness.
However, from the IQ of 120 and above, the positive outcomes in leadership effectiveness regress gradually as the IQ of leaders increases from 120.
Hence, in this case, it is concluded that the correct answer is option C. "moderate; having a leader who is smarter, but not too smart, works best."
Learn more here: brainly.com/question/7639253
