Answer:
The answer is D.
Explanation:
The way x-rays are produced is as follows; using a vacuum environment in a tube, the cathode is heated to a degree where it releases electrons, then these electrons collide with the anode releasing energy that create the x-rays.
All of the options are correct. Although the electron most likely won't stop, it will slow down and change direction after the collision. The law of conservation of energy is also applied in this situation, meaning that the kinetic energy of the electron released by the cathode will transfer to the anode to produce the x-rays. Most of the energy after the collision is converted into heat, which is why the metal used as the anode can heat up to 2000 degrees celcius.
I hope this answer helps.
Answer:
a)
b)
c)
d)
e)
Explanation:
When two heterozygous plants with genotype Bb are crossed, following offspring are produced
Bb * Bb
BB, Bb, Bb, bb
so the probability of blue offspring is and the probability of white offspring is
a) Probability of all 4 peas as blue
b) Probability of 3 blue and 1 white
c) Probability of 2 blue and 2 white
d) Probability of 1 blue and 3 white
e) Probability of all white
It is an answer of scientific questions and is based mostly on research
It kills insects,
Pros: less annoying weeds.
all the rodents and insects eating your crops will die
estimations show that millions of human lives have been saved from it (because bugs that carry malaria or yellow fever, or the black plague are being killed
Cons: Rodents and insects are very beneficial to the environment, so killing them harms the environment
the weeds and insects will become immune