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Consider (12.5 + A) micro-grams of a radioactive isotope with a mass number of (78 + B) and a half-life of (32.6 + C) million years. If energy released in each decay is 32.6 keV, determine the total energy released in joules (J) in 1 (one) year. Give your answer with three significant figures.
A =8B = 1C = 12
An ocean liner leaves New York City and travels 43° north of east for 189 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions.
Point charges q1 = -4.10 nC and q2 = -4.10 nC are separated by distance 3.00 mm, forming an electric dipole. What is the direction fo the dipole moment
a motor scooter trsvels east at a speed of 12 m/s. The driverthen reserves direction and heads west at 15 m/s. What is the change in velocity of the scooter? (answer in magnitude anddirection)
A 170, 35.0 cm-diameter turntables rotate on frictionless bearings at 53.0. A 20.0 block sits at the center of turntable. A compressed spring shoots the block completely outward along a frictionless groove in the surface of the turntable.
A 2.25×104 N elevator is to be accelerated upward by connecting it to a counterweight using alight (but strong!) cable passing over a solid uniform disk-shaped pulley, Determine how heavy should the counterweight be
A magnetic field is directed perpendicular to the plane of a 0.15-m × 0.30-m rectangular coil consisting of 240 loops of wire. To induce an average emf of –2.5 V in the coil, the magnetic field is increased from 0.1 T to 1.8 T through a time interval..
When a uranium nucleus at rest breaks apart in the process known as fission in a nuclear reactor, How much mass was lost in the process
A bicyclist is finishing his repair of a flat tire when a friend rides by at 3.8 m/s. How far has he traveled in this time
On a cello, the string with the largest linear density (1.54 10-2 kg/m) is C string. This string produces a fundamental frequency of 63.4 Hz and has the length of 0.795 m between the two fixed ends. Find tension in the string.
Consider kicking a soccer ball on a flat, horizontal soccer field, and suppose that you could kick it at only one speed
question1train springnbspa number of train stations have large horizontal springs at the ends of the tracks. these are
These three vectors add to give a resultant vector that is zero. Using components, find the magnitudes of (a) vector and (b) vector.
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