Answer:
The same amount of energy is required to either stretch or compress the spring.
Explanation:
The amount of energy required to stretch or compress a spring is equal to the elastic potential energy stored by the spring:
where
k is the spring constant
is the stretch/compression of the spring
In the first case, the spring is stretched from x=0 to x=d, so
and the amount of energy required is
In the second case, the spring is compressed from x=0 to x=-d, so
and the amount of energy required is
so we see that the amount of energy required is the same.
Answer:
Explanation:
As we know that at isochoric conditions if pressure of the gas is tripled then the temperature also becomes 3 times
So heat given in this process is given as
Now it is expanded to initial pressure again by adiabatic process
So in this part there is no heat exchange
Also we know that
Now in the last process we compressed the gas to original volume
Now total heat in the process is given as
the answer is d it reflects all the wavelengths of visible light.
Answer:
Pumping a well lowers the water level around the well to form a cone of depression in the water table. If the cone of depression extends to other nearby wells, the water level in those wells will be lowered. The cone develops in both shallow water-table and deeper confined-aquifer systems.
Explanation: