seeing lots of land out West
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
They established the Continental Army. They made George Washington General of the Army.
The greatest legacy left by the Second Continental Congress of Philadelphia was the Declaration of Independence of the United States on July 4, 1776, which marked the beginning of a long military dispute between the revolting settlers and English loyalists.
It ended with a resounding victory for the rebels, who founded a Republic (a year before the French Revolution!) In the Americas, guided by the principles of political freedom and the supremacy of the popular will.
As technology progressed, humans created increasingly more sophisticated stone tools
