Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Solve the following questions:
Question I: A radioactive sample produces 3840 decays per minute at one point in an experiment and 308.09 days later produces 240 decays per minute.
Part a: What is the half time?
Part b: What is the decay constant?
Part c: What is the mean lifetime of the material?
Question II: What fraction of a sample of cobalt-60 is left after 36.8956 yr. ( the half-life of cobalt-60 is 5.2708 yr.)
Question III: What period of time is required for a sample of radioactive oxyden-15 to lose 99.5% of its activity? (The half-life of uranium is 122.24 yr).
Give the detailed explanation of above question.
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. Compute its steady-state temperature
two long and parallel straight wires a and b carrying currents of 8.0 a and 5.0 a in the same direction are separated
A uniform ladder of length L and weight w is leaning against a vertical wall. determine the smallest angle the ladder can make with the floor without slipping
find the magnitude and direction of the electric field that the 6.0 nc and the -3.0 nc charges together create at the
The 1st man to orbit the Earth was Soviet cosmonaut Yuri Gagarin, on April 12, 1961. What was the spacecraft's speed at this point in its orbit
A ski lift carries 900 skiers per hour up a slope with a constant incline of 15 degrees and a vertical drop, How much power is required to run the lift
A 25 kg box is released from rest on a frictionless ramp making an angle of 42o with the horizontal. Determine the normal force on the box
A trap door, of length and width 1.65 m, is held open at an angleof 65.0 degree with respect to the floor. what is the torque exerted on the trap door by the rope
two parallel infinite sheets carry positive unifrom surface charge densities sigma and 3 sigma. what is the magnetude of electrci field between the sheets
A particle undergoes two displacements. The first has a magnitude of 119 cm and makes an angle of 106 degrees with the positive x axis. The resultant displacement has a magnitude of 111 cm and is directed at an angle of 37.7 degrees to the positive x..
A railroad car of mass 2.5 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
suppose that an insulating container of negligible mass contains 0.11 kg of water at a temperature of 2 degrees c. now
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd