Find impact angular velocity of member-velocity of sphere
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A flu epidemic starts by one infected person in an isolated population of N individuals. Find the number of infected people as a function of time. How long will it take to infect the entire population.
For a hydrogen atom, calculate the energy of a photon in the Balmer series that results from the transition n = 3 to n = 2. The Rydberg constant is 1.0974 × 107 m-1. (h = 6.6262 × 10-34 J·s and c = 3.00 × 108 m/s).
A) what is the max tension in the cable supporting the elevator? B) if the elevator was accelerating downwards at a rate of .2g, what is the tension in the cable supporting the elevator?
What is the hydronium-ion concentration of a buffer solution that is .25 M Na2HPO4 and .40 M NaH2PO4? For H3PO4, (Ka1=6.9x10-3), (Ka2=6.2x10-8) and (Ka3=4.8x10-13).
The coefficient of restitution between the sphere and member ABC is 0.5 determine immediately after the impact (a) the angular velocity of member ABC (b) the velocity of the sphere.
A 7.58 gram sample of benzoic acid, C6H5CO2H, is dissolved in 100 ml of benzene. The density of benzene is .879 g/ml. What is the molality of the benzoic acid?
Find the exit plane pressure, the exit plane Mach number, and the mass flow rate for the back pressures of 400 kPa, 200 kPa, and 100 kPa.
A compound of phosphorus and chlorine used in the manufacture of a flame retardant treatment for fabrics contains 1.20 grams of phosphorus for every 4.12 g. of chlorine.
The plane of a rectangular coil, 4.0 cm by 7.0 cm, is perpendicular to the direction of a magnetic field . If the coil has 50 turns and a total resistance of 8.0 O, at what rate must the magnitude of change to induce a current of 0.10 A in the win
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