the answer would be the last one because kinetic energy is something in motion.
hope it helps.
Answer:
a) 
, b) 
, c) 
.
Explanation:
a) Let assume that car travel on a horizontal surface. The equations of equilibrium of the car are:
After some algebraic handling, the following expression for the propulsion force is constructed:
b) The power require to move the car at a speed of 5 meters per second is:
c) The efficiency of the car is:
Answer:
The number of freely-moving neutrons decreases over time.
The number of freely-moving neutrons decreases over time.
Explanation:
Answer:
3.10 mole of C3H8O change in entropy is 89.54 J/K
Explanation:
Given data
mole = 3.10 moles
temperature = -89.5∘C = -89 + 273 = 183.5 K
ΔH∘fus = 5.37 kJ/mol = 5.3 ×10^3 J/mol
to find out
change in entropy
solution
we know change in entropy is ΔH∘fus / melting point
put these value so we get change in entropy that is
change in entropy 5.3 ×10^3 / 183.5
change in entropy is 28.88 J/mol-K
so we say 1 mole of C3H8O change in entropy is 28.88 J/mol-K
and for the 3.10 mole of C3H8O change in entropy is 3.10 ×28.88 J/K
3.10 mole of C3H8O change in entropy is 89.54 J/K
