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A patient swallows a radiopharmceutical tagged with phosphorus-32, a beta Émietter with half life of 14.3days. The average kinetic energy of the emmitted one electron is 700KeV. If the initial activity of the sample is 1.3MBq, determine (a) thé number of electrons emitted on a 10 day period (b) The total energy deposited in the boy during the 10 days (c) the absorbed dose if the electronsare completely absorbed in the 100g of tissue
q1. starting from rest a basketball rolls from the top of a hill to the bottom getting a translational speed of 7.36
Prior to the music CD, stereo systems had a phonographic turntable on which vinyl disk recordings were played. calculate the total number of rotations for the complete start-up
Khristian is a 6-year-old boy who is brought in for evaluation by his parents. The parents are concerned that he has a really deep cough that he just can't seem to get over. The history reveals that he was in his usual state of good health until appr..
A ray of light is incident from the air onto the surface of a diamond (n=2.42) at a 30 degree angle to the normal, calculate the speed of light in the diamond
The Pew Research Center survey asked a random sample of 1500 adults, "Do you think the use of marijuana should be made legal, or not?" In the entire sample, 41% said, "Yes, legal." But only 24% of the Republicans in the sample said, "Yes, legal." ..
A satellite is in a circular orbit about the earth at a distance of one earths radius above the surface. What is the speed of the satellite
A digital audio compact disc carries data, each bit of whichoccupies 0.6 um along a continuous spiral track from the innercircumstance of the disc to the outside edge. Find the average angular acceleration of the disc
An object is placed 20.0 cm from a converging lens with focal length 15 cm. A concave mirror with focal length 10 cm is located 75 cm to the right of the lens as shown in the figure. Note: The figure is not drawn to scale. Which pair of terms most..
A 270 ball and a 520 ball are linked by a 50.0-cm-long massless, rigid rod. The structure rotates about its center of mass at 120 rpm. What is its rotational kinetic energy.
In an elastic collision both momentum & KE are conserved. In inelastic collisions momentum is conserved but KE is not. Explain what happens in an inelastic collision
For isentropic diffusion, except across the shock, and for standard atmosphere, determine the stagnation temperature and pressure of the air entering the engine compressor.
A proton moves by a speed of 3.90*106 m/s horizontally, at a right angle to a magnetic field. What magnetic field strength is required to now balance the weight of the proton and keep it moving horizontally?
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