Once started, why can nuclear fission continue to occur on its own? The thermal
ID: 1624858 • Letter: O
Question
Once started, why can nuclear fission continue to occur on its own?
The thermal energy released can cause the products to join.
The neutron formed by the reaction can cause more nuclei to combine.
The thermal energy released can cause the products to split.
A neutron begins the reaction, and more neutrons are formed in it.
NEXT PLZ,
NEXT,
A car makes sound as it moves toward a stationary observer. What best describes the sound wave heard by the observer compared with the sound heard by the car’s driver?
higher frequency; shorter wavelength
higher frequency; longer wavelength
lower frequency; shorter wavelength
lower frequency; longer wavelength
NEXT PLZ,
How does the circuit change when the wire is added?
A closed circuit occurs and makes all bulbs turn off.
An open circuit occurs and makes all bulbs turn off.
A short circuit occurs and makes bulbs 3 and 4 turn off but keeps bulbs 1 and 2 lit.
A short circuit occurs and makes bulbs 1 and 2 turn off but keeps bulbs 3 and 4 lit.
LAST ONE,
Which best describes why the emissions from alpha decay are so easily blocked compared to the emissions of other types of radioactive decay?
Alpha decay releases visible light, which has less energy than the light released during gamma decay.
Alpha decay releases particles that have less mass and charge than the particles released during beta decay.
Alpha decay releases particles that have less mass and charge than the particles released during gamma decay.
Alpha decay releases particles that have more mass and charge than the particles released during beta decay.
3 Y 2 4 1 XExplanation / Answer
1.
Right option is neutron begins the reaction, and more neutrons are formed in it.
The secondary neutrons help in chain rection more and more fisions take place.
2.
Right option is higher frequency; shorter wavelength
As per doppler effect in sound the heared frequency by obsever is higher than orginal frequency.And as frequency is =c/wavelength, so wavelength is shorter
3.
Right option is short circuit occurs and makes bulbs 1 and 2 turn off but keeps bulbs 3 and 4 lit.
because whole current passes through the wire.
4.
Right option is alpha decay releases particles that have more mass and charge than the particles released during beta decay.
mass of alpha particle equal to the helium atom and mass of beta particle equal to electron.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.