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Unreasonable Results
The manufacturer of a smoke alarm decides that the smallest current of α radiation he can detect is 1.00 µA .
(a) Find the activity in curies of an α emitter that produces a 1.00 µA current of α particles.
(b) What is unreasonable about this result?
(c) What assumption is responsible?
Particle A has a mass of 5.5 g, particle B has a mass of 1.3 g. Particle A is located at the origin, particle B at the point (x, y) = (25 cm, 0). What is the location of the center of mass
A spacecraft is in a circular orbit about the moon, 1.03 x 105 meter above its surface. The speed of the spacecraft is 1770 meter per second, Find the apparent speed of the spacecraft's image
A ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.2m on a frictionless horizontal surface. What is the mass of the ball
A closed surface encloses a net charge of 3.00 µC. What is the net electric flux through the surface
Treating our rigid legged friend as a particle, what is the average force his feet exert on the ground when he slows down.
you have a 7.70 uf capacitor a 1250 resistor who are connected in series to a generator operating at 50 hz producing an
A steel cylinder of mass 4 kg contains 4 L of liquid water at 25 C degree at 100 kPa. Find the total mass and volume of the system
Collectible coins are sometimes plated with gold to enhance their beauty and value. Consider a commemorative quarter-dollar advertised for sale at $4.98. Find the cost of the gold added to the coin
A 2000 kilogram car moves down a level highway under the actions of two forces: evaluate the speed of the car after it has moved a distance of 35 meter, assuming that it starts from rest
Suppose the region outside the chamber is evacuated and the total mass of the block and the movable piston is150 kg. What is the distance s through which the piston rises
The potential at location A is 376V. A positively charged particle is released there from rest and arrives at location B with a speed vB.
if f 29 n the angle is 63.5 degrees m 2.6 kg the coefficient of kinetic friction is 0.25 and the vertical contact
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