As we know that work done by external environment is given as
here we know that
P = 200 N/m^2
now we will have
so work done by external atmosphere will be 40 J
so correct answer will be
A. 40 joules
2,450 Joules, kinetic energy is 1/2 mass x velocity squared.
Answer:
114.19186 m
Explanation:
v = Velocity of girl at bottom = 7.1 m/s
= Coefficient of kinetic friction = 0.045
g = Acceleration due to gravity = 9.81 m/s²
d = Distance
N = Normal force = 783 N
The weight of the sled and girl is considered as the sum of the frictional force and weight
Hence we use the following equation where the kinetic energy and potential energy are conserved
The sled travels 114.19186 m on the level ground before coming to a rest
Answer:
Both fission and fusion are nuclear reactions that produce energy, but the applications are not the same. Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light nuclei combine together releasing vast amounts of energy
Explanation:
Answer:
D. The liquid is a mixture because it has a gas dissolved in a liquid.