A radioactive substance decays exponentially. A scientist begins with 130 milligrams of a radioactive substance. After 28 hours, 65 mg of the substance remains. How many milligrams will remain after 46 hours? mg Give vour answer accurate to at least one decimal place

Q: Thorium-228 is a radioactive substance that decays 50% every 1.9 years. How much of a 50 gram sample…

A: Given query is to find the amount remaining after 22.8 years.

Q: The half-life of Radium-226 is 1760 years. If a sample contains 400 mg, how many mg will remain…

A: Half life of Radium-226 1760 years Initial value- a∘=400mg Given time=2000 years n=20001760…

Q: he amount of charcoal a coal burner burns varies directly as the time taken for cooking. If the…

A: Given that the burner burns 600 gram in 20 minutes, then our aim is to calculate how much time does…

Q: A wolf population is growing at a rate of 9.3% per year. Find the time at which the wolf population…

A:

Q: 4/5 day= how many minutes

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Q: The population of a city is growing by 13% per year. Find the doubling time. Round your answer to…

A: We have to find the time for which the population is doubled. Given information r=13% Let original…

Q: You drop a ball from a height of 52 inches and the ball starts bouncing. After each bounce, the ball…

A: Here give that  Ball height = 52 inches and after each bounce, the ball reaches a height 80% of the…

Q: A wooden artifact from an ancient tomb contains 35 percent of the carbon-14 that is present in…

A: Radioactive decay

Q: Ammonia (NH3) is widely used as a fertil- izer and in many household cleaners. How much ammonia is…

A: The first step is to identify the chemical reaction. The reaction of nitrogen gas with hydrogen gas…