Physics, 26.02.2021 14:00, kiylabeasty7302
(b) (i) Carbon-12 is a stable isotope. Carbon-14 is an unstable radioactive isotope.
Table 12.2 shows the contents of each nucleus.
Carbon-12
Carbon-14
Number of protons
6
6
Number of neutrons
6
8
Table 12.2
Explain why carbon-12 and carbon-14 are isotopes.
[1]
Answers: 3
Physics, 21.06.2019 15:20, hartzpeyton136
Two large, flat, horizontally oriented plates are parallel to each other, a distance d apart. half way betwween the two plates the electric field has magnitude e. if the separation of the plates is reduced to d/2 what is the magnitude of the electric field half way between the plates?
Answers: 2
Physics, 22.06.2019 11:20, leandrogarin37p2g5ds
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
Answers: 1
(b) (i) Carbon-12 is a stable isotope. Carbon-14 is an unstable radioactive isotope.
Table 12.2 sho...
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