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15 O and 131 I are isotopes used in medical imaging 15 O is a beta-plus emitter, 131 I a beta-minus emitter. What are the daughter nuclei of the two decays? (DON'T TELL ME THE ANSWER IS 15,7 N AND 131,54 XE BECAUSE IT IS WRONG!)
A 5.70-kg ball is dropped from a height of 12.0m above one end of a uniform bar that pivots at its center. The bar has mass 6.00kg and is 4.80m in length. At the other end of the bar sits another 5.10-kg ball, unattached to the bar. The dropped ball ..
A box is sliding up an incline that makes an angle of 13.4° with respect to the horizontal. How far does the box travel along the incline before coming to rest
A bat can detect small objects such as an insect whose size is approximately equal to one wavelength of the sound the bat makes. what is the smallest insect a bat can detect
A ship is floating on a lake. Its hold is the interior space beneath its deck; the hold is empty and is open to the atmosphere. What volume of water per second leaks into the ship
A rope, under a tension of 370 N and fixed at both ends, oscillates in a second-harmonic standing wave pattern. What is the speed of the waves on the rope
A 4.5m long, non uniform beam weighing 750N, supported by two weighing cables, is at rest in horizonal position as shown . The cable on the right has a tension of T1=650 N.
Two blocks, each of mass m = 2.1 kg, are pushed along the horizontal surface of a table by a horizontal force P of magnitude 5.4 N, Find the frictional force acting on the upper block
cientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test, this gun accelerates a 5.0kg projectile from rest to a speed of 4.0 x 103 m/s. The net force accelerating the projectile..
An ac series R-L-C circuit contains a 120 ohm resistor, a 2.00 uf capacitor, and a 5.00 mH inductor. Find the resonance angular frequency
The company adheres to a 60% dividend payout ratio and has a P/E ratio of 19. There are 21,000 shares of stock outstanding. Illustrate what is the amount of the annual net income for the firm?
You have a grindstone ( a disk) that is 84.0 kg, has a .307-mradius, and is turning at 104.0 rmp, How many turns wil the stone make before coming to rest
You jump from the top of a boulder to the ground 1.85 m below. Calculate your deceleration on landing
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