KE = 0 (because velocity is 0)
PE = mgh = 2kg*9.8m/s^2*40m= 784 joule
<u>Explanation:</u>
KE stands for kinetic energy. In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.
Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. Since in this case, the building is still and therefore it does not have any kind of kinetic energy because there is not acceleration.
Answer:
recyclble materials include Milk bottles, news papaers and soda cans
the rest is compost
20 items is the total
13 are recycble
13/20 as a decimal is 0.65
multiply by 100
and answer is
<h2><u><em>
B.65%</em></u></h2>
Step-by-step explanation:
Answer:
x=2
Step-by-step explanation:
x6−7=5
x6=7+5
x6=12|:6
x=2
Answer:
the approximate weight of the little girl at an age of 14 years old will be 88 pounds.
Step-by-step explanation:
Answer:
-5.9n+9.1
Step-by-step explanation:
3.1 - 3.9n - 2n + 6=
Combind like terms
Step 1: -3.9 - 2n=-5.9n
Step 2: 6 + 3.1=9.1
Combine:
-5.9n+9.1
