Discuss how many grams of the radio active substance
A radio active substance has a half-life of 46.5 minutes. How many grams of the radio active substance will remain in a 822.4g sample after four hours have elapsed?
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If the spring constant is 500kN/m2 and the area of the piston is 0.05 m2 determine the work done when the pressure inside the cylinder reaches 500 kPa.
The remaining volume is vapor at 100 kPa. How much heat must be added to the container to just vaporize all the liquid water?
An interesting (but oversimplified) model of an atom pictures an electron "in orbit" around a proton. Suppose this electron is moving in a circular orbit of radius 0.30 nm (3.0 x 10-10) and the force that makes this circular motion possible is the
A sample of a radioactive substance used in detecting skin cancer produced 592 counts in one minute at the beginning of a test and acount of 451 counts in one minute after one day.
A 40-W lightbulb connected to a 120-V source experiences a voltage surge that produces 135 V for a moment. By what percentage does its power output increase? Assume its resistance does not change.
Determine the maximum deflection and bending stress if a) all edges are simply supported b) the two 200-mm sides are simply supported and the two 400-mm sides are fixed.
The eccentricity if 0.1, the inclination is 30 degrees and the argument for periapsis is 60 degrees. Calculate in terms of vo the single delta-v required for C for this maneuver.
Determine the spatial separation between the two isotopes after they have traveled through a half-circle.
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