Physics, 22.10.2019 05:10 Arden990560
Q1. after three half-lives of an isotope, 1 billion of the original isotope's atoms still remain in a certain amount of this element. how many atoms of the daughter product would you expect to be present?
q2. by measuring the amounts of parent isotope and daughter product in the minerals contained in a rock, and by knowing the half-life of the parent isotope, a geologist can calculate the absolute age of the rock. a rock contains 125 g of a radioisotope with a half-life of 150 000 years and 875 g of its daughter product. how old is the rock according to the radiometric dating method?
Answers: 1
Physics, 22.06.2019 01:00
An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10
Answers: 3
Physics, 22.06.2019 04:00
10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!
Answers: 2
Physics, 22.06.2019 07:30
The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface
Answers: 1
Physics, 22.06.2019 19:00
The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.
Answers: 1
Q1. after three half-lives of an isotope, 1 billion of the original isotope's atoms still remain in...
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