The maximum velocity of the rock is 64.55 m/s
Answer: Option B
<u>Explanation:</u>
The possessed energy by the objects while motion called kinetic energy. It is directly proportionate to mass and square of velocity. The stored energy in the system called potential energy and expressed as below,
U = spring’s potential energy in certain place
k = the spring constant, in N/m.
x = the spring’s distance is stretched or compressed away from equilibrium
Conservation of energy states energy neither created nor destroyed but change from one form to other. So, using this concept, equating both potential and kinetic energies equation we get,
Given:
m = 12 g = 0.012 kg
k = 200 N/m
x = 0.500 m
Substitute these values we get,
Taking square root, we get,
(a) 
The average acceleration of the ship is given by
where
v is the final velocity
u is the initial velocity
t is the time elapsed
Here we have:
is the initial velocity
v = 0 is the final velocity
is the time elapsed
Substituting, we find
(b) 4.72 m/s
Assuming the acceleration is uniform, the average velocity of the ship is given by:
where
v is the final velocity
u is the initial velocity
Here we have:
v = 0
u = 9.44 m/s
So the average velocity of the ship is
Answer:
No
Explanation:
All planets are different than others and bigger so that means no
Glass is a very good electrical insulator.
(As long as it's not "leaded" glass.)
The change in internal energy of the gas is
.
In fact, the 1st law of thermodynamics states that the change in internal energy of a system is equal to the amount of heat given to the system (Q) plus the work done on the system (W):
In this example, no work is done on the bottle so W=0, while the heat given to the system is
, so the change in internal energy of the gas is
