Atomic and Nuclear Physics Answers

An object starts from rest and accelerates for 0.24 meter per second square for 2 minutes and continues at a steady speed for 3 minutes and slow down to stop for 1 minute. a. Draw graph for the motion. b. Calculate the maximum velocity in km/hr. c. Determine the retardation. d. find the displacement in 5 minutes.

I want to learn how to calculate spent nuclear fuel burn up.what are the basic parameter I need to get from the research reactor to create supper cell,cross section etc and finally calculate the burn up

Carbon dating is used to determine the age of dead organic materials.The process uses radioactive carbon-14, which has half-life of around 6000 years.
Scientists are studying a mammoth found frozen in ice. They find that a sample of carbon from the remains has a count-rate of 200 counts per minute. When the mammoth died, the count-rate would have been 800 counts per minute. A second set of remains is found that are 18000 years older than the first set of remains. Calculate the count-rate of the second sample.

Pure rotational spectrum is almost always seen as absorption lines,and not as emission lines.Explain.

Bohr atomic model limitation

A body is left free at height h= 19.6m ( with initial velocity v0= 0 ) . What is the path covered by the body . 1) in initial time interval t1 = 0.1 s
2) and during the time period t2 = 0.1 s just before striking the ground ?

from a balloon which is at height H= 300m above the ground a stone is left to fall freely . How long will it take for the stone to reach the ground 1) balloon is moving up at velocity v= 5m/s 2) balloon is moving down at velocity v= 5m/s 3) balloon is motionless

The ratio of areas within the electron orbits for the first excited state to the ground state for the hydrogen atom is

The ratio of areas within the electron orbits for the first excited state to the ground state for the hydrogen atom is