Roughly 12000 people in a certain country are diagnose a thyroid cancer every year which accounts for 1% of all cancer cases that occurs in women 3 times as frequently as men fortunately thyroid cancer can be treated successfully and many cases with radioactive iodine or i-131 this unstable form of iodine has a 1/2 life of 8 days and is given in small doses measured in milicuries
a)suppose a patient is given initial dose of 80 milicuries. find a function that gives the amount of i-131 in the body after t> 0(more than or equal) days
b) how long does it take for the amount of i131 to reach 15% of the initial dose
c) finding the initial dose to give a particular patient is a critical calculation. how does the time to reach 15% of the initial dose change if the initial dose increased by 5%

here are some information of the future of geothermal energy:

-the future of geothermal energy can pretty much be summed up with a single word: more

-scientists plan in going deeper than 120 meters

-we are hoping that one day, we will get all of our energy from renewable energy sources such as geothermal energy

hope this !

i already answered it by 34/s

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft

snell's law

refractve index = sin incidence / sin refraction