The ratio of carbon-14 to nitrogen-14 in an artifact is 1:7. Given that the half- life of carbon-14 is 5730 years, how old is the artifact?

a.5730 years
b.17.190years
c.11,460 years
d.22,920 years

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

What determines the amount of inertia an object has

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)