What is the work done by the force of friction
A horizontal force of 200N is applied to a 55-kg cart across a 10m level surface. If the cart accelerates at 2.0 m/s^2, then what is the work done by the force of friction as it acts to retard the motion of the cart?
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A football punter accelerates a football from rest to a speed of 8 m/s during the time in which his toe is in contact with the ball (about 0.23 s). If the football has a mass of 0.50 kg, what average force does the punter exert on the ball?
The weight of a product is normally distributed with a standard deviation of .5 ounces. What should the average weight be if the production manager wants no more than 10% of the products to weigh more than 6 ounces?
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A mixing chamber which is heated externally by hot air has two inlets and one exit. The water in each inlet and exit is at a pressure of 5 bar. Water enters through inlet 1 (d=6 cm) at 25oC with a mass flow rate of 5 kg/min .
A 1200 kg automobile moving at 25 m/s has it brakes applied with a deceleration of 8.0 m/s^2. How far does the car travel before it stops?
A person has applied for positions at Company A, Company B and Company C. The probability of obtaining an offer from Company A is 0.4, from B is 0.3 and from C is 0.6. Assume that the three jobs offer will be independent. What is the probability t
Saturated water vapor at 300 kPa undergoes an isothermal process in a closed system until it becomes a saturated liquid. How much heat transfer is required for this process?
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