Physics, 21.08.2020 19:01 heleneallie7ou1fnk
How much of a 1.0 g polonium-214 Sample remains after 818 microseconds? The half life of polonium-214 is 163.7 microseconds. PLEASE HELP
Answers: 1
Physics, 22.06.2019 01:30
John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?
Answers: 1
Physics, 22.06.2019 12:30
An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.
Answers: 1
Physics, 22.06.2019 16:50
Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?
Answers: 2
How much of a 1.0 g polonium-214 Sample remains after 818 microseconds? The half life of polonium-21...
Computers and Technology, 05.03.2021 18:10
Chemistry, 05.03.2021 18:10
Mathematics, 05.03.2021 18:10
Mathematics, 05.03.2021 18:20
History, 05.03.2021 18:20
Mathematics, 05.03.2021 18:20
Business, 05.03.2021 18:20
English, 05.03.2021 18:20
Social Studies, 05.03.2021 18:20