490J
Step-by-step explanation:
Given parameters:
Mass of rock = 5kg
Height of hill = 10m
Unknown:
Potential energy at the hilltop = ?
Solution:
Potential energy is the energy at rest of a body. it is given as:
P.E = mgh
m is the mass of the body
g is the acceleration due to gravity = 9.8m/s²
h is the height of the hilltop
P.E = 5 x 10 x 9.8 = 490J
Learn more:
Potential energy brainly.com/question/10770261
#learnwithBrainly
Answer:
B
Step-by-step explanation: Net worth is the total assets minus total liabilities of an individual or entity.
Answer:
66
Step-by-step explanation:
I dont feel like explaining, it was a long process, but its right. Pls give brainiest.
Answer:
see below
Step-by-step explanation:
x^-2 = 1/x^2 Let x = -2 1/ (-2)^2 = 1/4
x^-1 = 1/x^1 Let x = -2 1/ (-2)^1 = 1/(-2) = -1/2
x^0 = 1
x^1 = x Let x = -2 (-2)
x^2 = Let x = -2 (-2)^2 = 4
