Draw the electric field line which passes through a circle...
1 answer:
You might be interested in
Answer:
The pressure value changes 400 % relative to the initial value.
Explanation:
Let suppose that the gas behaves ideally and represents a closed system, that is, a system with no mass interactions so that number of moles is conserved (). Since the variables involved in the isothermal process are pressure (
) and volume (
). Finally, the process is represented by the following relationship:
(1)
Where:
- Initial and final pressures.
- Initial and final volumes.
If we know that ,
and
, then the final pressure of the closed system is:
The pressure value changes 400 % relative to the initial value.
Answer:
The temperature rise is .
Explanation:
Given the mass of the hammer is 1.19 kg.
And the speed of the hammer is 8.4 m/s.
We need to find the temperature change of iron nail having 20 hammer blows.
First, we will find the kinetic energy of the each blow of hammer.
For 20 such blows, the kinetic energy will be
Let us assume that the nail absorbs all the kinetic energy. So, this 839.8 J will be converted into heat energy .
Now,
Also, we know that
Where,
is the mass of the nail, which is
is the specific heat capacity of iron, which is 449 J/kg.K
is the change in temperature.
Plug these value we get,
We can see the temperature rise is 143.9 K.