Explanation :
When an electron jumps from one energy level to another, the energy of atom gets changed.
If a photon gets absorbed, the electron will move to higher energy levels and then fall back to the lower energy levels. Then each time a photon will be absorbed whose energy is given by difference between the initial and final energy levels i.e
In Balmer series, the transition is from higher energy levels to n = 2.
So, the necessary condition for Balmer series is that the electron should be at first excited state or n = 2 level as shown in figure.
The force that cannot be the resultant of these forces is 10N since it is <u>less than both given forces</u>
Given the forces with a magnitude of 12N and 24N, the resultant of these forces must not be less than any of the two forces.
- From the given options, the only force that is less than both 12N and 24 N is 10N.
- Hence the force that cannot be the resultant of these forces is 10N since it is <u>less than both given forces</u>
Learn more on resultant force here: brainly.com/question/14626208
Answer:
2660 m
Explanation:
Sum of the forces in the first 6.00 s:
∑F = ma
F − mg = ma
35.0 N − (0.800 kg) (10 m/s²) = (0.800 kg) a
a = 33.75 m/s²
The height it reaches during this time is:
Δy = v₀ t + ½ at²
Δy = (0 m/s) (6.00 s) + ½ (33.75 m/s²) (6.00 s)²
Δy = 607.5 m
The velocity it reaches is:
v = at + v₀
v = (33.75 m/s²) (6.00 s) + 0 m/s
v = 202.5 m/s
After the battery runs out, the drone is in free fall. At the highest point, the velocity is 0. The height at this point is:
v² = v₀² + 2aΔy
(0 m/s)² = (202.5 m/s)² + 2 (-10 m/s²) (h − 607.5)
h ≈ 2660 m
Answer:
Technician A is correct
Explanation:
The power stroke starts after the compression stroke, the piston is at Top Dead Center, and the valves are closed. At the beggining of it, the mixture is ignited (spark in Otto engines, by the pressure in Diesel Engines) so, technician A is correct. At the end of power stroke, the exhaust stroke starts. In this stroke, the EXHAUST valve is open, to let the gases flow out of the cylinder as the piston goes from the Bottom Dead Center to the Top Dead Center. Therefore Technician B is incorrect.
The right answer for the question that is being asked and shown above is that: "B.The small car has less momentum because its mass is less than the mass of the truck." A small car and a large truck are both driving south at 40 km/h. The statement that is true is that t<span>he small car has less momentum because its mass is less than the mass of the truck. </span>