[GT.02H]The table below shows the initial and final masses of a radioactive material in a container. Initial mass (in kilograms) 0.8
Final mass (in kilograms) 0.05

Based on the table, which of these conclusions is correct?
The half life of the material is five years.
The half life of the material is four years.
The material has completed four half lives.
The material has completed five half lives.

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

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

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.