You run a race with your friend
You run a race with your friend. At first you each have the same kinetic energy, but then you find that she is beating you. When you increase your speed by 29%, you are running at the same speed she is. If your mass is 90 kg, what is her mass?
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The enthalphy change for any reaction can be obtained by subtracting the sum of the enthalpy changes of formation of the reactants from the sum of the enthalpy changes of the formation of the products.
A distribution center recives a shipment of a product from three diffrent factories in quantaties on 60, 40, and 25 three times a product is selected at random each time without replacement find the probability that all three products came from th
Calculate stress intensity factor for hoop stress of 6 inch longitudinal subsurface crack. The pipe is austenitic stainless steel schedule 40 304L.
Calculate the equilibrium concentrations of H2, I2 and HI at 700 Kif the initial concentrations are [H2] = 0.100 M and [I2] = 0.200M.
If air enters such a device at 300 kPa, 40 C, at a rate of 0.100 kg/s and air leaves one end at 100 kPa, 50 C, at a rate of 0.060 kg/s, what is the temperature of the air leaving the other end?
Assuming that the flow is adiabatic and that the kinetic energy of the steam at the inlet is negligibly small, determine the inlet temperature if the inlet pressure is 300 kPa.
A .2420g sample containing calcium is dissolved, and the metalprecipitated as CaC2O4. The precipitate is filtered, washed and re-dissolved in acid. The pH is adjusted. 25mL of .0400M EDTA areadded, and the excess EDTA is titrated with 33.28mL of .
A machine has an 760 g steel shuttle that is pulled along a square steel rail by an elastic cord . The shuttle is released when the elastic cord has 25.0N tension at a 45 degree angle.
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