Answer:
The centripetal acceleration of car is 8 m/s².
Explanation:
General internal energy expression:
Uf = (Ui-W) + Q
Where Uf = Final internal energy, Ui = Initial internal energy, W = Work done, Q = Heat added
But,
Uf -Ui = ΔU = 36 J, W = 17 J. Then,
ΔU = -W +Q => Q = ΔU+W = 36+17 = 53 J
Therefore, heat added to the system is 53 Joules
Answer:
Boiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water.
(credits to lumenlearning)
Explanation:
Answer:

Explanation:
x = Displacement in x direction = 5.34 m
t = Time taken to travel the displacement
y = Displacement in y direction = 0
u = Initial velocity of ball = 7.7 m/s
g = Acceleration due to gravity = 
Displacement in x direction is given by

Displacement in y direction is given by


The angle at which the ball was thrown is
.