Answer:
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.
Q = Heat absorbed= Joules
m= mass of copper = 454 g
c = specific heat capacity =
Initial temperature of the copper = = 23.0°C
Final temperature of the water = = ?
Change in temperature ,
Putting in the values, we get:
The final temperature of copper will be
Answer:
undergoes a transition to a quantum state of lower energy
Explanation:
When electrons in an atom move to another quantum state, they emit/absorb a photon according to the following:
- If the electron is moving to a higher energy state, it absorbs a photon (because it needs energy to move to a higher energy level, so it must absorb the energy of the photon)
- if the electron is moving to a lower energy state, it emits a photon (because it releases the excess energy)
In particular, the energy of the absorbed/emitted photon is exactly equal to the difference in energy between the two levels of the electron transition:
Answer:
The width of the river is
Explanation:
From the question we are told that
The distance of the base line is D = 130 m
The angle is
A diagram illustration the question is shown on the first uploaded image
Applying Trigonometric Rules for Right-angled Triangle,
Now making z the subject
