Answer:
DU = 20 Joules
Explanation:
Given the following data;
Heat absorbed, Q = 60J
Workdone, W = 40J
To find the internal energy;
We would use first law of thermodynamics given by the formula;
Change in internal energy (DU) = Q - W
where;
U is internal energy.
Q is the heat absorbed.
W is the work done.
Substituting into the equation, we have;
DU = 60 - 40
DU = 20 Joules
Answer:
Climate
Explanation:
conditions of the atmosphere at a particular location over a long period of time; it is the long-term summation of the atmospheric elements
Answer:
hearing range for a healthy young person is 20- 20,000 hertz. The highest frequency for a normal middle aged man is 12-14 kilohertz.
Answer:
The fractional kinetic energy will be lost if the collision is inelastic. In inelastic collision, the kinetic energy is converted into other forms of energy.
The lost energy became heat and sound energy.
Explanation:
During inelastic collision, the kinetic energy of a moving object does not conserve. It changes into another form of energy such as sound energy and heat energy etc.
For example, when a moving car hit another car or wall etc, the kinetic energy is converted into sound and heat energy. This type of collision is inelastic collision.
Answer:
457.8394 K
Explanation:
= Escape velocity = 2.38 km/s
T = Temperature
R = Gas constant = 8.314 J/mol K
M = Molar mass = 2.016 g/mol
The rms velocity of a molecule is given by
Here,
The temperature of the hydrogen molecule would be 457.8394 K