Physics, 10.12.2020 19:40 mwshehat0

2. Barium 122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up the experiment using barium
-122, how much barium - 122 will be left when the experiment begins?
(Show your work)

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 02:30

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

Answers: 3

Answer

Physics, 22.06.2019 07:30

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.

Answers: 2

Answer

Physics, 22.06.2019 12:30

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

Answers: 1

Answer

Physics, 22.06.2019 18:30

Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)

Answers: 3

Answer

You know the right answer?

2. Barium 122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes...

Questions