What percentage of the alpha particles penetrated completely

Reference no: EM13341858

A physicist has developed a device that generates a beam of alpha particles (each of which is a helium nucleus, consisting of two protons, two neutrons, and no electrons). The device ejects a steady stream of 4910 alpha particles per second. You are testing different shielding materials for a test chamber that will house the alpha particle generator. You prepare a sheet of one potential material in an electrically neutral state, mount it on a perfectly insulating stand, and fire the alpha particle device at it for 32.3 seconds. Afterward, you measure that the charge of the sheet is 2.02 × 10-14 coulombs. Assume that none of the alpha particles bounced back from the sheet, meaning that the alpha particles either were captured by the shielding or penetrated completely through the shielding. What percentage of the alpha particles penetrated completely through the shielding material?

Reference no: EM13341858

Questions Cloud

The power of consumer boycotts : A boycott can be described as a conscious withdrawal from some commercial activity or participation as a form of punishment or protest (see Oxford Dictionaries). A consumer boycott is when consumers actively choose to not purchase products from a par..

Explain the relationship between the structures of esters : What is the relationship between the structures of esters and their odors. What is the relationship between the structures of esters and the carbonyl peaks from IR spectra

Find the rate of change of the angular momentum of sphere : A 2.00 kg sphere is rotating about an axis through its center at 40.0 rev/s with the angular velocity in the +z direction. find the rate of change of the angular momentum of the sphere

Highlighting the most important issues and how to address : Writing a report advising Janet on the best way to solve her problem in communication terms. Write your report highlighting the most important issues and how to address them

What percentage of the alpha particles penetrated completely : Assume that none of the alpha particles bounced back from the sheet, meaning that the alpha particles either were captured by the shielding or penetrated completely through the shielding.

Critically evaluate the issue in terms of its effects upon : Critically evaluate the issue in terms of its effects upon businesses, consumers or a particular firm, including how the affected parties have responded, or plan to respond.

What is the work done by kinetic friction : A 43.0kg seal at an amusement park slides from rest down a ramp into the pool below. what is the work done by kinetic friction

Define value of the equilibrium constant for the reaction : Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell (c) What is the value of the equilibrium constant for..

Calculate how many electrons has the filament lost : The concept of thermionic emission is the basis of modern X-ray tubes, which are the workhorse of a medical X-ray image. In this process a filament (a piece of metal in a vacuum) is heated by the application of electrical current.

User Account

All Pages