Physics, 01.03.2021 18:50 katlyn10289
Question 13 of 15
Lead-196 has a half-life of 37 minutes. It decays into thallium-196. Suppose a
sample contains 20 atoms of lead-196 and 60 atoms of thallium-196. About
how old is the sample?
A. 148 minutes
B. 37 minutes
C. 111 minutes
D. 74 minutes
Answers: 2
Physics, 21.06.2019 15:20
Two large, flat, horizontally oriented plates are parallel to each other, a distance d apart. half way betwween the two plates the electric field has magnitude e. if the separation of the plates is reduced to d/2 what is the magnitude of the electric field half way between the plates?
Answers: 2
Physics, 22.06.2019 15:50
An object with initial temperature 130 β f is submerged in large tank of water whose temperature is 50 β f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = β 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
Answers: 1
Physics, 22.06.2019 19:20
On a hot saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 22degreesc. at noon the air conditioner is turned off, and the people go home. the temperature outside is a constant 33degreesc for the rest of the afternoon. if the time constant for the building is 4 hr, what will be the temperature inside the building at 4 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? at 6 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? when will the temperature inside the building reach 24degreesc? 324281
Answers: 3
Physics, 23.06.2019 05:30
Organ systems work to maintain homeostasis by creating energy to allow systems to function, releasing hormones to create or end body reactions, and eliminating waste to prevent illness. t or f
Answers: 1
Question 13 of 15
Lead-196 has a half-life of 37 minutes. It decays into thallium-196. Suppose a
Mathematics, 18.03.2021 03:00
Mathematics, 18.03.2021 03:00
Mathematics, 18.03.2021 03:00
Mathematics, 18.03.2021 03:00
Chemistry, 18.03.2021 03:00
History, 18.03.2021 03:00
Mathematics, 18.03.2021 03:00
Mathematics, 18.03.2021 03:00
Chemistry, 18.03.2021 03:00
Health, 18.03.2021 03:00
Mathematics, 18.03.2021 03:00