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(a) The lifetime of a highly unstable nucleus is 10-10 s. What is the smallest uncertainty in its decay energy? eV
(b) What is the ratio of this energy to the rest energy of an electron?
A 0.03 kg (lead) bullethits a steel plate and melts and splatters on impact. Assuming that the bullet recieves 80% of the collision energy, at what minimium speed must it travel to melt on impact? How is this soved without knowing what the bullet ..
A gun fires a bullet vertically into a 1.40-kg block of wood at rest on a thin horizontal sheet (Figure on the side). If the bullet has a mass of 24.0 g and a speed of 310 m/s, how high will the block rise into the air after the bullet becomes emb..
A smaller 18 kg box is held up against a larger 52 kg box as shown. The coefficients of friction are Mu s = 0.54 and Mu k = 0.22 between the two boxes. There is no friction on the floor! Thus the big box will begin to slide as soon as it is pushed..
Timberland’s incremental tax rate is 30%. Prepare a budgeted income statement assuming that Timberland sells 2,500 tons. Illustrate what is the contribution margin per ton?
When playing a Fortissimo (very loudly) , a trumpet emits sound energy at rate of 0.738 W out of a bell(opening) of diameter 12.7 cm. a What is the sound intensity level right in front of the trumpet?
A satellite, mass of satellite=5850 kg, is in circular orbitof 4.1x10^5m above the surface of a planet, which has a radius of4.15x10^6m. calculate the tangential velocity of the satellite
Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 12cm . You take the balloon in an airplane, where the pressure is 0.90 atm. If the temperature is unchanged, what's the balloon's new radius?..
What is the average speed of a rider on this Ferris wheel.
the left ventricle of the heart accelerates blood from rest to a velocity of 23.2 cms. a if the displacement of the
Mr. Physics drops a rock down a 250-meter deep well. Upon impact with the bottom of the well a short burst of sound is produced with a frequency of 250 Hz. How long after he drops the rock does he hear it hit bottom of the well.
What centripetal force does an 80-kg passenger experience when seated 12 m from the center of the Ferris wheel whose angular speed is 0.50 rad/s.
The total amount of energy stored in an LC series circuit is 8.00 J. When the current through the inductor is equal to half its maximum value, how much energy is stored in the electric field
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