Physics, 04.12.2020 20:00 bbbbbbbbbbbb62
a radioactive tracer has a half-life of 2 hours. how much of a 2500g sample will be avalible after 18 hours
Answers: 1
Physics, 21.06.2019 13:30
What do butterflies have on their feet which allows them to sense different strengths and types of nectar? a.mechanoreceptors b.acoustic receptors c.substratum receptors d.chemoreceptors
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Physics, 22.06.2019 11:00
Which of the following are guidelines to follow for obtaining accurate observations
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Physics, 22.06.2019 11:00
Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.
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Physics, 22.06.2019 18:30
Adolphin emits ultrasound at 100khz and uses the timing of reflections to determine the position of objects in the water. part a what is the wavelength of this ultrasound? assume that temperature of water is 20 degrees c. answer in cm
Answers: 2
a radioactive tracer has a half-life of 2 hours. how much of a 2500g sample will be avalible after 1...
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