Physics, 21.04.2021 23:40 azainababbas
Table 1 contains data about two completely ionised samples of pure boron.
Each sample contains only isotopes X and Y.
Table 1
Sample | Number of ions Mass of Charge on
number in sample = ple / kg each ion/ C
fot | 3.50 x 1016 6.31 x 107! +1.60 x 10719
3.50 x 10” 6.20 x 10°? +1.60 x 10°?
Deduce which sample, 1 or 2, contains a greater percentage of isotope Y.
[3 marks]
Answers: 1
Physics, 21.06.2019 22:30
The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage
Answers: 2
Physics, 22.06.2019 07:00
Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j
Answers: 1
Table 1 contains data about two completely ionised samples of pure boron.
Each sample contains onl...
Geography, 23.01.2020 12:31
Mathematics, 23.01.2020 12:31
English, 23.01.2020 12:31
Mathematics, 23.01.2020 12:31
Mathematics, 23.01.2020 12:31
Mathematics, 23.01.2020 12:31
Mathematics, 23.01.2020 12:31
Mathematics, 23.01.2020 12:31
Mathematics, 23.01.2020 12:31
Social Studies, 23.01.2020 12:31