Yes that is true all cells have cytoplasm and cell membrane! hope this helps! ;D
Answer:
The emission spectrum lines are the changes in the quantum energy levels of the single electron in the Hydrogen atom.
Explanation:
Electrons move around the hydrogen atom in electron waves patterns. These waves occur in distinct quantum energy levels.
The change from one quantum energy level to another energy level has a definite energy level change. There is a wave length associated with each change in energy levels. These wave lengths have a color associated with them.
Low energy level changes have long wave lengths associated with them giving red and orange colors.
High energy level changes have short wave lengths associated with them giving blue and violet colors.
Note each atom has a unique emission spectrum associated with the energy levels and electron structure of the atom. Helium was first discovered by looking at its emission spectrum as seen in the sun.
Explanation:
Abca I think it’s right not sure
Yes- as long as the roller coaster car is not powered once it leaves the station and energy loss due to resistance can be ignored.
Energies of a system:
- Potential Energy
- Kinetic Energy
- The term "Mechanical Energy" refers to the sum of both types of energy.
A roller coaster car moving along a level track with an initial velocity has mechanical energy in the form of kinetic energy.
The car would slow down while gaining height as its kinetic energy converts to gravitational potential energy when moving upwards along the track. It would have no kinetic energy since all its mechanical energy are now in the form of gravitational potential energy in case it comes to a stop before reaching the top of the track.
Similarly, the car gains speed while losing height as some of its gravitational energy is converted to kinetic energy when it travels downwards.
The mechanical energy of this vehicle conserves since any of the movements, moving upslope, downslope, or level, would ensure that
<em>Loss in Potential Energy </em>=<em> Gain in Kinetic Energy</em>
and vice versa.
D, in both animals, the infants are hatched from an egg outside the mother.