Determine the velocity of the center of mass of two balls
Two balls are approaching each other head-on. Their velocities are +9.86 and -11.9 m/s. Determine the velocity of the center of mass of the two balls if they have the same mass.
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A Psychologist has developed a new method designed to help people taking an exam. The method requires the person to come to the office of the Psychologist 5 times over a 5 week period and involves hypnosis and mental exercises.
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Assume you have 1.7 lbm of atmospheric air at 90 F. Into it you spray 0.009 lbm of water at 65 F. Does the water enter as saturated liquid, saturated vapor, compressed liquid, or superheated vapor?
Suppose that the service rates at the three stands are large enough so that a stationary distribution exists. At what rate do the three stands make sales. To check your answer note that since each entering customers buys exactly once the three rat
Assume that the transmission of the van is in neutral, the brakes are not being applied, and the collision is elastic. What is the final velocity of the car?
A 0.135 kg projectile is fired with a velocity of +711 m/s at a 1.82 kg wooden block that rests on a frictionless table. The velocity of the block, immediately after the projectile passes through it, is +40.7 m/s. Calculate the velocity with which
Determine the temperature of the ball after 10 seconds? (Properties of aluminum, density=2700 kg/m^3, Cp=896 J/kg C, k=236 W/m C and gamma=k/density *Cp)
A simple random sample of 60 items resulted in a sample mean of 80. The population standard deviation is 18. Compute the 95% confidence interval for the population mean (to 1 decimal).
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