Use the graph to answer the questions.
What is the half-life of isotope X? 25 seconds
How ma...
Use the graph to answer the questions.
What is the half-life of isotope X? 25 seconds
How many radioactive atoms of isotope X are left after 3 half-lives? 13
How many half-lives must have occurred if only 7 atoms of isotope X are left? 4
There's the answers, thank me later
Answers: 2
Physics, 22.06.2019 08:00
What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?
Answers: 1
Physics, 22.06.2019 11:10
Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603
Answers: 3
Physics, 22.06.2019 18:30
Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions
Answers: 1
Physics, 22.06.2019 22:00
On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2. a. 9.5 m b. 11.9 m c. 15.2 m d. 23.8 m
Answers: 1
Mathematics, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
History, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
Physics, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
German, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
Biology, 18.09.2020 15:01
History, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01
Mathematics, 18.09.2020 15:01