Answer:
Explanation:
When two cars collide then the momentum of two cars will remains conserved
- Mass of two cars = 100 kg
-
Speed of car B = - 10 m/s
-
After collision the speed of car B = +8 m/s
By momentum conservation equation
The big bang is how astronomers explain the way the universe began. It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now (and it could still be stretching).
The correct option is (A) 2.5 m/s
Explanation:
Since,
v = fλ ---- (1)
where v = speed of the wave
f = frequency of the wave = 5 Hz
λ = wavelength of the wave = 0.5
Plug in the value in (1):
(1) => v = 5 * 0.5
v = 2.5 m/s
<span>The flower width data were collected at about the same time
every day. </span>
According to the research, the responder made with the same
query as this question it is:
<span><span>
1.
</span>The flower width data were collected at about
the same time every day. </span>
Why this choice because, the study is delving into the
effects of morning temperatures on flower width hence, if the scientists
collect flower at the same time –hour or minutes everyday during the period of
the study the variable of time is not allotted from sunrise period to high noon
since it defines time as morning, the variant of time is only inapt.
Answer:
Explanation:
Using the given equation, we calculate the energy associated with the excited state 
and 
Helium has an atomic number (Z) equal to 2, for n=8:
For n=4:
When an electron jumps from an energy level with greater energy 
to one with lower energy 
the wavelength of the emitted photon is given by:
h is the Planck constant and c the speed of light in vaccum. So, we have:
