What is the half life of radioactive isotope
Copper 64 used to study brain tumors. assume that the original mass of a sample of copper 64 is 26.000g. after 64 hours all that remains is 0.8125g of copper 64. what is the half life of this radioactive isotope?
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You, an owner of several popular Chinese restaurants in downtown San Francisco with approximately 120 employees, used to generate lots of profits from these restaurants. Your restaurants offer nice and decent warm breakfast and lunch to serve
When 0.5000L of a 1.00M solution of Pb(NO3)2 is mixed with and excess of 1.00M solution of KI how many grams fo lead(II) iodide are formed.
Mechanical engineering questions ,statics ,propability,weibull chart requiring> I need help in those field please, there are some questions related to the probability.
An electrical transformer dissipates heat equivalent of 3000 kW/h. the inlet and outlet temperatures of the cooling water are 55C and 15C respectively. calculate the mass of the cooling water in a minute?
Given that the rate constant is 4.0×10-4 at 25.0 degrees C and that the rate constant is 2.6×10-3 at 42.4 degrees C, what is the activation energy in kilojoules per mole? Note that the value of the constant is R=8.3154 J/(mol*K)
A viscous incompressible newtonian fluid flows down a vertical wall. the liquid is exposed to atmospheric pressure and the liquid film thickness h is constant.
You apply a constant force F? =(-68.0N)i^+(36.0N)j^ to a 420kg car as the car travels 49.0m in a direction that is 240.0 ° counterclockwise from the +x-axis.
A 100 mL buffer solution initially has 1.00 M HClO (Ka = 3.0 × 10-8) and 0.75 M NaClO. What is the new pH when this 100 mL of 0.10 M NaOH is added to the initial buffer solution?
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This week watch the 3 short video clips below about cultural appropriation. These videos will redefine terms like cultural appropriation
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