Calculate the percentage of s.d. with net counts

Assignment Help Physics
Reference no: EM131230047

A G.M. counter records 4,900 background counts in 100 min. With a radioactive source in position, the same total number of counts are recorded in 20 min. Calculate the percentage of S.D. with net counts due to the source

Reference no: EM131230047

Questions Cloud

Bottom of the diagram : Create a diagram that includes the following. At the bottom of the diagram, provide a definition for each term:
Explain how their value extracting strateies work : To build a sustainable business that is profitable, scalable, and capable of delivering service excellence every day, organizations must recognize that "Your Can't be Good at Everything." (a) Explain the meaning and why this approach has helped organ..
Which setting do you like best and why : Right-click on a spot of your desktop that is not covered by an icon, window, or menu. When the menu comes up, play with the options under the "Sort By" menu. Which setting do you like best and why?
Returns an array in which elements : Given a sorted array of 100 scores, the quartiles are at index 25, 50, and 75, which divide the data into even rankings each of which are the bottom, 2 middle, and top 25% of all scores. Write an algorithm with expected running time of O(n) that, ..
Calculate the percentage of s.d. with net counts : A G.M. counter records 4,900 background counts in 100 min. With a radioactive source in position, the same total number of counts are recorded in 20 min. Calculate the percentage of S.D. with net counts due to the source
Perform computing tasks : 1. Identify at least 3 types of computers, how they process information, and the purpose and function of key hardware components. 2. Identify how to maintain computer equipment and solve common problems relating to computer hardware. 3. Explain how..
Background review and synthesis of the literature : The assignment is Background review and synthesis of the literature for the topic of your research-based report. - define a problem in your workplace or community persuasively and accurately.
Determine output rate that will maximize total gross revenue : Laurel and Hardy have written a new managerial economics textbook, for which they receive royalty payments of 15 percent of total revenue from book sales. Determine the output rate that will maximize the total gross revenue. At this level of output, ..
Each worker is contracted to work five consecutive days : In an LTL (less-than-truckload) trucking company, terminal docks include casual workers who are temporarily to account for peak loads. At the Omaha dock the minimum demand for casual workers during the 7 days of the week (starting on Monday) is 20, 1..

Reviews

Write a Review

Physics Questions & Answers

  Magnitude of acceleration of apple just after it is released

Presume that a passenger intent on lunch through his first ride in a hot-air balloon accidently drops an apple over the side through the balloon’s liftoff. At the moment of the apple’s release, the balloon is accelerating upward with a magnitude of 4..

  Determine the angle between the string and the vertical

A mass of 9.30 kg is suspended from a 1.45 m long string. It revolves in a horizontal circle, Calculate the angle between the string and the vertical

  What is their total ebergy at the top of the hill

A sled and rider with a combined weight of 63 kg are at reston the top of a hill 11 m high. What is their total ebergy at the top of the hill ?

  At what speed does the stone impact the ground

While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 6.97 m/s. At what speed does the stone impact the ground

  What is the total time the ball is in the air

A ball is thrown upward from the ground with a speed of 30 m/s. What is the total time the ball is in the air

  What is the fundamental frequency of the string

What is the fundamental frequency of the string i.e. the frequency once she removes her finger from the string and it vibrates over its full length?

  What is the force that holds the spring stretched

Work of 2 Joules is done in stretching a spring from its natural length to 17 cm beyond its natural length. What is the force (in Newton's) that holds the spring stretched

  Write down the equation that describes the forces

a person pulls on a 50Kg desk with a 200N force acting at 30 angle above the horizontal. the desk does not budge. draw a force diagram for the desk. Write down the equation that describes the forces which act in the x-direction.

  Find positions of four charges in a plane

Find positions of four charges in a plane (+1C, -1C, +2C, -2C) that result in an equilibrium (zero net force on each charge). Report positions as four (x,y) pairs.

  Current that will be reasons to flow in conductor loop

A circular conducting loop by a radius of .37m has a resistance of 10Ω and is orientated on the xy plane.  If a magnetic field of 1.8 T making an angle of 30 degrees by the z axis. Increases to 8T in 2.1s.  What is the magnitude of the current that w..

  Obtain the speed of the three coupled cars after collision

A railroad car of mass 2.3 104 kg moving at 2.50 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision

  Find how much kinetic energy does the ball have

A 46 gram golf ball is hit and launched at 194.4 km/hr at 30 degrees above the horizontal. How much Kinetic energy does the ball have at the maximum height

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd