Answer:
Nodes.
Explanation:
Nodes are a point that are on a standing wave that never move.
The change in potential energy of an object is given by

where
m is the mass of the object
g is the gravitational acceleration

is the increase in altitude of the object
In our problem,

is the mass of the book,

and

is the increase in altitude of the book, so its variation of potential energy is
Answer:
I would love to be a gardener :)
Explanation:
Plants are kool!!!
Answer:
Is that an actual question for school?
W= FxD. Since the weight is not put into force you’re going to convert it by multiplying it by 9.8 (gravity). 76kg x 9.8 = 7448. Then multiply that by the distance (2.5). Your answer is 1862.