Answer:
False
Explanation:
Becuase the average amu of 40 is represented
Mechanical efficiency is a measure of how well the machine converts the input work or energy into some useful output. It is calculated by dividing the output work by the input work. The ideal machine has mechanical efficiency equal to unity, while the real machine has mechanical efficiency less than unity
In 1600 when William Gilbert published De Magnete
Answer:
46,502,000 times
Explanation:
The question asked how many times back <em>and </em>forth, so you divide by 2 (so in half); and if it's 93,004,000 then you divide that by 2 which equals, 46,502,000.
Answer:
C) seems to be the correct one
Each alpha particle emitted decreases the mass of the nucleus by 4 and decreases the atomic number by 2.
Also, each beta particle will increase the atomic number by 1.
So if C emits 5 alpha particles the atomic mass decreases by 20 and the atomic number decreases by 10. Then emission of 2 beta particles brings the atomic number up to minus 8.
So a total of 7 particles have been emitted and the number of alpha particles emitted exceeds the number of beta particles emitted.
