Answer:
Explanation:
Given:
- mass of the object,
- elastic constant of the connected spring,
- coefficient of static friction between the object and the surface,
(a)
Let x be the maximum distance of stretch without moving the mass.
<em>The spring can be stretched up to the limiting frictional force 'f' till the body is stationary.</em>
where:
N = m.g = the normal reaction force acting on the body under steady state.
(b)
Now, according to the question:
- Amplitude of oscillation,
- coefficient of kinetic friction between the object and the surface,
Let d be the total distance the object travels before stopping.
<em>Now, the energy stored in the spring due to vibration of amplitude:</em>
<u><em>This energy will be equal to the work done by the kinetic friction to stop it.</em></u>
<em>is the total distance does it travel before stopping.</em>
Answer:
c=0.14J/gC
Explanation:
A.
2) The specific heat will be the same because it is a property of the substance and does not depend on the medium.
B.
We can use the expression for heat transmission
In this case the heat given by the metal (which is at a higher temperature) is equal to that gained by the water, that is to say
for water we have to
c = 4.18J / g ° C
replacing we have
I hope this is useful for you
A.
2) El calor específico será igual porque es una propiedad de la sustancia y no depende del medio.
B.
Podemos usar la expresión para la transmisión de calor
En este caso el calor cedido por el metal (que está a mayor temperatura) es igual al ganado por el agua, es decir
para el agua tenemos que
c=4.18J/g°C
reemplazando tenemos
As the cloud shrank, its gravitational potential energy was converted to kinetic energy and then into thermal energy.