Americium-241 is used in some smoke detectors it is an
Americium-241 is used in some smoke detectors. It is an alpha emitter with a half-life of 432 years . How long will it take in years for 40.0 % of an Am-241 sample to decay
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Discuss the ways in which animal and plant cultivation of the Neolithic Age changed humanity economically, politically, religiously, socially, and technologically.
An unknown radioactive substance has a half-life of 3.20 hours. If 38.7g of the substance is currently present, what mass was present 8.00 hours ago
A 225-m length of wire stretches between two towers and carries a 180-A current. Determine the magnitude of the force on the wire due to the Earth's magnetic field
a broadcasting executive is reviewing the prospects for a new television series,according to her judement , the probability is 0.25 that the show will achieve a rating higher than 17.8, and the probability is 0.15
Explain the ways in which the Indus, the Nile, the Tigris and Euphrates, and the Yangzi and Yellow Rivers shaped the development of ancient Chinese, Indian, Egyptian, and Mesopotamian civilizations.
An electron has an initial velocity of 2.00 ? 106 m/s in a uniform 4.00 ? 105 N/C strength electric field, How far does the electron travel before coming to rest
(1.) Identify and describe the six factors that distort performance appraisals.
Compare and contrast the development of sedentary, agricultural civilizations in the Americas with that of those in the Afro-Eurasian landmass. In your essay consider the timeframes of such development on these two sets of continents, the types of an
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Which of the following describes what occurs with the statement of deficiencies? It is transmitted to the facility staff within 10 working days
Your HCO has several clinical services, and a record of improvement on quality, patient satisfaction, and associate satisfaction in most of them.
A) Briefly describe the social movement in your own words. B) What type of movement is/was it (revolutionary/reform, instrumental/expressive)?
Which of the following is a step the DNS should incorporate into that conversation? Convey frustration and disapproval.
First thing in the morning, the DNS receives a report from Mrs. A's daughter that someone was rough with her mother during the night.
he organization's leadership team listened to Eric and his colleagues' concerns and asked Eric to assemble a team to develop a plan for the proposed change.
What are the steps taken by the first police officer arriving at a crime scene?