What percentage of alpha particles penetrated completely

Reference no: EM13104600

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 5420 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 22.3 seconds. Afterward, you measure that the charge of the sheet is 4.33 × 10-15 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: EM13104600

Questions Cloud

What polarity of charge should the rod possess : Assume the balloon and rod to be point charges. The Coulomb force constant is 1/(4? ?0) = 8.99 × 10^9 N·m2/C2 and the acceleration due to gravity g = 9.81 m/s2.

Discussion on the best strategic plan : Discuss fully, the best strategic plan one of your employer's has (had) and the worst strategic plan one of your employer's has had. Do not name the organization, just use XYZ.

Computing sample proportion : Suppose you conduct survey asking people if they support something or if they like some product or if they watch some TV-show.

Complaining about harsher grading : one class of 40 students complain that they were harshly graded in the examination as l0 students received A or B ; 17 received a C ; and the rest received a D or lower. QUESTION: Is the class's complain about harsher grading justified? ( use a : 0..

What percentage of alpha particles penetrated completely : 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).

Creating c chart at 99.73 percent levels : Airlines lose thousands of checked bags every day, and America South Airlines is no exception to the industry rule. Over the past 6 weeks, the number of bags "misplaced" on America South flights has been 18, 10, 4, 6, 12, and 10.

Confidence interval-state education agency : A state education agency designs and administers high school proficiency exams. Historically, time to complete the exam was an average of 120 minutes.

How many electrons are also emitted : For a particular collision you detect the emitted products and find 15 protons, 2 antiprotons, 6 positrons, and 25 neutral particles. How many electrons are also emitted?

Chi-square distribution table : A random sample of size 16 is chosen from a population and a 90% confidence interval for the standard deviation will be determined. What value of should be located in the chi-square distribution table?

User Account

All Pages