Physics, 26.06.2019 14:00 christyr2002
Jai was measuring the radioactivity of different radioactive isotopes. isotope a had a starting radioactive level of 50 g, and after 4 days it measured at 30 g. isotope b had a starting radioactive level of 75 g, and after 4 days it measured at 25 g. which best explains the isotopes? isotope a has a shorter half-life than isotope b., isotope a has a longer half-life than isotope b., isotope a has half the half-life of isotope b., or isotope a has twice the half-life of isotope b.
Answers: 2
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Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?
Answers: 2
Jai was measuring the radioactivity of different radioactive isotopes. isotope a had a starting radi...
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