A certain radioisotope has a half-life of 745 days what

Assignment Help Physics
Reference no: EM13627777

A certain radioisotope has a half-life of 7.45 days. What percentage of an initial sample of this isotope remains after 23 days?

Reference no: EM13627777

Questions Cloud

In a study to determine the mean iq score of college : in a study to determine the mean iq score of college students 450 students were randomly selected and the mean iq was
A closed system consisting of 013 lbmol of air undergoes a : a closed system consisting of 0.13 lbmol of air undergoes a polytropic process from a pressure of 14 psia and specific
Determine the heat and work associated with each process : a piston-cylinder device contains r-134a. initially the phase is saturated vapor at 160 kpa. the system then undergoes
Two semiconductor factories are being compared to see if : two semiconductor factories are being compared to see if there is a difference in the average defect rates of the chips
A certain radioisotope has a half-life of 745 days what : a certain radioisotope has a half-life of 7.45 days. what percentage of an initial sample of this isotope remains after
Three forces each of magnitude p 4kn are applied to the : three forces each of magnitude p 4kn are applied to the mechanism shown. determine the cross-sectional area of the
Assume that a procedure yields a binomial distrubition with : assume that a procedure yields a binomial distrubition with n trials and the probability of success for one trial is p.
An airline has a policy of booking as many as 23 persons on : an airline has a policy of booking as many as 23 persons on an airplane that can seat only 22. past studies have
The plane is forced to rotate with constant angular : a particle of mass m is confined to move without friction in a vertical plane with axes x horizontal and y vertically

Reviews

Write a Review

Physics Questions & Answers

  Use the work-energy theorem to find its maximum height

You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 14.5m above the ground, Use the work-energy theorem to find its maximum height

  Find the wavelength of the back-scattered photon

An x-ray photon of initial energy 50.0 keV Compton scatters from an electron that is initially at rest. find the wavelength of the back-scattered photon

  Calculate the force on a proton due to dipole at location

A dipole is located at the origin, and is composed of charged particles with charge +e and -e, separated by a distance 3 10-10 m along the y axis. The +e charge is on the -y axis.

  Indicate location of the marking on the dial for each depth

An inexpensive depth gauge used by scuba divers consists of a small diameter tube wrapped around the rim of a dial. An opening or port at one end allows water to enter when submerged.

  Compute the mass of this canister

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. But she does have devices to measure distance and time accurately. What is the mass of this canister

  Compute the magnitude of frictional force exerted on ladder

A uniform ladder 10.0 m long is leaning against a frictionless wall at an angle of 60.0° above the horizontal. compute the magnitude of the frictional force exerted on the ladder

  What is the magnitude of the electricdipole moment

An electric dipole consisting of charges of magnitude 3.90 nC separated by 7.10µm is in an electric field of strength 1350 N/C. What is the magnitude of the electricdipole moment?

  Determine how much work is done by the skier

in a ski race starting from rest a 65kg skier descends through 120 meters of vertical drop nd finishes his run at 58 miles per hour. how much work is done by the skier

  Locate and describe the image

An object 1.00" high is placed 2.00" in front of a concave mirro f radius 4.00" Find p and q. Show work/picture. Locate and describe the image

  Compute the current in the coil

The 1800-turn coil in a dc motor has an area per turn of 1.1 multiply.gif 10-2 m2. compute the current in the coil

  What is the mass of the unknown element

A sample containing beryllium (atomic mass 9 u), aluminum (27 u), and an unknown element is placed in a mass spectrometer, What is the mass of the unknown element

  Determine the ratio q''/q

Two cylindrical rods are identical, except that one has a thermal conductivity k1 and the other has a thermal conductivity k2. As the drawing shows.

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