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
This is an example of recency and primacy bias.
Explanation:
What happened to Terrence is a pretty common occurrence to people who tend to remember things on a list with some form of difficulty as they usually only retain the things in the first part or the end of the list they are being narrated.
This is due to the attention spans of the people who are receiving the information from the other person.
When the person only remembers the first part of any information they are paying more attention in the beginning and this is known as primacy bias.
When the person only retains what they heard the last it is known as recency bias
Answer:
Changing the planet’s Elliptical Orbit
Explanation:
