Which statement accurately describes the use of radioactive decay?
technetium-99 is used as a radioactive tracer because it remains in the body for a long time.
some types of cancer cells are killed by directing alpha rays at the tumor from outside the body.
plants utilize radioisotopes in the same way they use nonradioisotopes because they are chemically identical.
geologists and archaeologists use different dating processes to determine the age of rocks, fossils, and ancient
artifacts
Answers: 3
Physics, 21.06.2019 23:30
Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?
Answers: 2
Physics, 22.06.2019 10:00
Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.
Answers: 2
Physics, 22.06.2019 15:00
Lightning is an example of what phenomenon? a release of a large amount of energy an absorption of a large amount of energy a natural electric circuit a natural electric current
Answers: 1
Which statement accurately describes the use of radioactive decay?
technetium-99 is use...
technetium-99 is use...
Mathematics, 06.07.2019 01:00
Mathematics, 06.07.2019 01:00
History, 06.07.2019 01:00
Mathematics, 06.07.2019 01:00
Mathematics, 06.07.2019 01:00
History, 06.07.2019 01:00
Biology, 06.07.2019 01:00
Mathematics, 06.07.2019 01:00
Mathematics, 06.07.2019 01:00
Mathematics, 06.07.2019 01:00
Mathematics, 06.07.2019 01:00
Mathematics, 06.07.2019 01:00
Mathematics, 06.07.2019 01:00