Explanation:
Some examples of colorful light emissions are street lights, neon signs and, of course, fireworks. Neon signs emit light when an electric current passes through the neon gas.
If a sample of carbon dioxide is at − 60.0 ∘C and 0.50 atm and warm to 30.0 ∘C and 0.50 atm, then there will be no phase transition in the sample is a True statement.
Phase Transition:
- The three main states of matter are Solid, Liquid, and gas. A phase transition occurs from one state of matter to another when energy is supplied or cut.
- When energy is supplied to the molecules, solid converts to liquid, and liquid converts to gas.
- Then, the energy increases the speed of the molecules, the density decreases and phase transition takes place.
- On the other hand, when the supply of energy is stopped from the molecules, the gas turns to liquid, and liquid converts to solid. Both the temperature and pressure are in the same phase.
Therefore, there will be no phase transition in the sample. Hence, it is a true statement.
To learn more about a phase transition, visit: brainly.com/question/13926873
#SPJ9
C. design extra reinforcements in the building's windows so that they
can withstand the vibrations from sonic booms.
Explanation:
The engineer should design extra reinforcements in the buliding's windows so that they can withstand the vibrations from the the sonic booms.
When the supersonic craft takes off, it releases huge vibrations and this fores objects nearby to vibrate at their own natural frequency. This phenomenon is known as resonance.
- When objects vibrates at a natural frequency due to the vibration of another body nearby, it leads to resonance.
- Sonic booms releases a massive burst of energy that forces structures around to want to vibrate.
- Windows have to be reinforced in order to prevent them from shattering when the craft takes off.
learn more:
Sound waves brainly.com/question/2845448
#learnwithBrainly