Answer:
-730KJ
Explanation:
According to the first law of thermodynamics;
Let the total energy of the system be ∆E
Let heat be q and let work the w
Since the energy decreases ∆E is negative
Since work is done on the system w= positive
So;
- 250 = 480 + q
q = -250 - 480
q=-730KJ
An object of mass 
is moving with a uniform velocity of 
. The kinetic energy possessed by the object is 
.
Given:
Mass of an object 
Velocity 
Kinetic Energy 
Mass of Object 
Kinetic Energy 
Kinetic Energy 
What is Kinetic Energy?
- In physics, an object's kinetic energy is the energy it has as a result of its motion.
- It is defined as the amount of work required to accelerate a body of a given mass from rest to a certain velocity.
- The body retains its kinetic energy after gaining it during acceleration until its speed changes.
- Kinetic energy is present in a speeding bullet, a walking human, and electromagnetic radiation such as light. The energy associated with the continual, random bouncing of atoms or molecules is another type of kinetic energy.
Learn more about kinetic energy brainly.com/question/12669551
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When you rub the balloons, it will take electrons away, which is negative. So, the balloons are negative
Answer:
Thermal physics is the combined study of thermodynamics, statistical mechanics, and kinetic theory of gases. This umbrella-subject is typically designed for physics students and functions to provide a general introduction to each of three core heat-related subjects. Other authors, however, define thermal physics loosely as a summation of only thermodynamics and statistical mechanics.
Explanation:
