Aradioactive material, such as the isotope thorium-234, disintegrates at a rate proportional to the amount currently present. if q(t) is the amount present at time t, then d q/dt = −r q, where r > 0 is the decay rate. a. if 100 mg of thorium-234 decays to 82.04 mg in 1 week, determine the decay rate r. b. find an expression for the amount of thorium-234 present at any time t. c. find the time required for the thorium-234 to decay to onehalf its original amount.

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honesty and integrity.

inspire others.

commitment and passion.

good communicator.

decision-making capabilities.

accountability.

delegation and empowerment.

creativity and innovation.

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water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

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