Follow a poisson distribution
On average one customer arrives every 12 seconds at an information kiosk. Arrival times follow a Poisson distribution. What is the probability that less than 5 customers arrive within the next minute?
A. 0.439
B. 0.392
C. 0.522
D. 0.483
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It is estimated that the isentropic efficiency of the turbine is 70%. What is the maximum turbine inlet pressure if the exhaust is not to be in the two-phase region?
(a) What is the electric force exerted on an electron when it is 3.0 x 10^-15 m from the center of the nucleus? (b) What is the acceleration of the electron at this point?
Naphthalene (C10H8) is a solid aromatic compound often sold as mothballs. The complete combustion of this substance to yield CO2(g) and H2O (l) at 25oC yields 5154 kj/mol .
What are the charge density and total charge on each plate? Draw the equipotential surfaces at 0.10 V and 0.20 V.
Two flows of H2O, one of which is saturated vapor at .6 MPa and the other of which is at .6 MPa, 600 deg C, mix adiabatically in a steady-flow process to produce a single outflow at .6 MPa, 400 deg C.
Consider light that is refracted by a prism shaped like an equilateral triangle. The incident ray is parallel with the prism's base. What is the total deflection of the ray, given that the index of refraction of the prism material is 1.50 ?
If heat is also transferred to the cooler from the surroundings (at 15 deg C) at 25o kW, find the rate of heat transfer from the ball bearings and the rate of production of new disorder in this quenching process.
The normal boiling point of liquid bromine is 58.2°C. At 9.3°C the equilibrium vapor pressure of liquid bromine is 100 torr. From this data, calculate the standard state Gibbs energy of formation of bromine vapor at room temperature, ?
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