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tamaranim1 [39]
3 years ago
13

a) 500. J of work are done on a system in a process that decreases the system’s thermal energy by 200. J. How much energy is tra

nsferred as heat? Is the transfer into the system or out of thesystem?(b) What is the heat transfer if the system’s internal energy instead increases by 200. J? Into or out of the system?
Physics
1 answer:
Firdavs [7]3 years ago
5 0

Answer:

The First Law of Thermodynamics relates internal energy or thermal energy, heat and work. There are some important things to consider. The first law will not tell you the amount of internal or thermal energy, but only how much it has changed. Heat is not temperature. Heat is the flow of energy from hot to cold objects. If heat flows into a system, we consider it positive. If heat flows out of a system, we consider it negative. Work can be done on or by the gas. If the volume increases, the gas is doing the work and we consider this negative. If work is done on the gas, the volume decreases and we consider this positive.

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what is the mass of a cannon ball if a force 2500 N gives the cannon ball an acceleration of 200 m/s squared?
nignag [31]

Using Newton's second law of motion:

F=ma ;  [ F = force (N: kgm/s^2);m= mass (kg); a = acceleration (m/s^2)


Given:                      Find:                   Formula:                  Solve for m:

F: 2500N                 mass:?                F=ma Eq.1              m=F/a  Eq. 2

a= 200m/s^2  


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which law of thermodynamics would be violated if heat were to spontaneously flow between two abject which are in thermal equilib
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The law zero of thermodynamics.

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