Neptunium-239 has a half life of 235 days how many days
Neptunium-239 has a half life of 2.35 days. How many days must elapse for a sample of 239Np to decay to 0.100% of its original quantity?
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a 14kg block and a 27kg block are attached to opposite ends of a light rope the rope hangs over a solid frictionless
a car with 52cm -diameter tires accelerates uniformly from rest to 20ms in 10s how many ties does each tire
a 0010 m solution of a weak monoprotic acid is 25 dissociated at 25 c what is the equilibrium constant ka for this
a 12-v battery is connected across a device whose resistance is 24 ohms calculate the current in the wire what is the
neptunium-239 has a half life of 235 days how many days must elapse for a sample of 239np to decay to 0100 of its
water at ground level is moving at a speed of 120 msec in a pipe at a pressure of 850 kpa the pipe goes up to the
write a nuclear equation to describe the spontaneous fission of 244 am 95 to form i-134 and mo-107 determine how many
a 052 um thick soap film n141 in air is illuminated with white light in a direction perpendicular to the film for what
a 5 kg mass is connected to a spring 1000 nm platform which undergoes simple harmonic motion in the vertical direction
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