the main strenght is each person has a job and the weekness is they are poor
This process shows alpha decay so X represents an alpha particle. The characteristic of alpha decay is that the mass number stays constant while the proton number increases.
Answer:

Explanation:
When we shoot the dart upwards the time taken by the dart to go straight up and again come back is given as

here we can say


put t = 4.6 s then we have

Now in order to find the maximum range we can say

so in order to have maximum range we can say




The answer would be c.
your equation should look like:
reactants-----> products