How many carbon-14 nuclei decay per second

Assignment Help Physics

Reference no: EM13666808

1. How many carbon-14 nuclei decay per second in a 70-kgperson, assuming that the person's body contains 12% of carbon and that there is one carbon-14 nucleus for every 10 12carbon-12 nuclei?

2. How much time must pass after this person dies before the Carbon-14 activity decreases to one decay per second?

Reference no: EM13666808

Questions Cloud

Total mass of the passengers and elevator : An engineer is designing a spring to be placed at the bottom of an elevator shaft. If the elevator cable must happen to break when the elevator is at a height h above the top of the spring, compute the value that the spring constant k should have so ..

Horizontal platform in the shape of a circular disk rotates : "A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle during the center of the disk. The platform has a radius of 1.10 m and a rotational inertia of 486 kg * m^2about the axis of rotation.

A man holds a double-sided spherical mirror : A man holds a double-sided spherical mirror therefore that he is looking directly into its convex surface, 55 cm from his face. The magnification of the image of his face is +0.23. What will be the image distance when he reverses the mirror (looking ..

Neglecting wind resistance how far away will the ball land : A soccer ball is kicked at an angle of 30 degrees by the flat ground, and at an initial speed of 50ft/s. Neglecting wind resistance, how far away will the ball land? Give your answer in units of ft.

How many carbon-14 nuclei decay per second : How many carbon-14 nuclei decay per second in a 70-kgperson, assuming that the person's body contains 12% of carbon and that there is one carbon-14 nucleus for every 10 12carbon-12 nuclei? How much time must pass after this person dies before the C..

Oxygen in the lungs : Oxygen in the Lungs: In the lungs, the respiratory membrane separates tiny sacs of air (pressure1.00x105Pa) from the blood in the capillaries. These sacs are called alveoli. The average radius of the alveoli is 0.125 mm, and the air inside contains 1..

An ice dancer with her arms stretched out starts : An ice dancer with her arms stretched out starts into a spin by an angular velocity of 2.00 rad/s. Her moment of inertia with her arms stretched out is 3.42 kg·m2. What is her angular velocity when she pulls in her arms to make her moment of inertia ..

What is the distance among the two points : A string with a mass/length of 0.00200 kg/m is stretched between two points by a tension of 120 N. If the fundamental frequency is 660 Hz, then what is the distance among the two points?

Is the point where the net electric field is zero : A +16μC point charge and a -4μC point charge are separated with 3m. How far from the +16μC point charge, along the line joining the two charges, is the point where the net electric field is zero? (Other than at infinity)

User Account

All Pages