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Water flowing in a 4.0 pipe at the rate of 1.4 m/s comes to a 0.50 cm pipe and then a 2.0 cm pipe. Find the velocity in the last two pipes.
On an icy (nearly frictionless) street a 600 kg car traveling straight east at 5 m/s collides with a 1000 kg car traveling straight north at 3 m/s. what is the direction of motion of the second car
A 30cm string of linear density 7.0 g/m is stretched to a tension of 35N and fixed at both ends, What is the wave speed for the string
The thin ring can be adjusted vertically between three equally long cables from which the 100-kg chandelier is suspended. If the ring remains in the horizontal plane and z = 600 mm, determine the tension in each cable.
A hawk is flying north at 2.0 m/s with respect to the ground; 10.0 s later, it is flying south at 5.0 m/s. What is its average acceleration through this time interval?
a 0.135 kg projectile is fired with a velocity of 711 ms at a 1.82 kg wooden block that rests on a frictionless table.
Two ice skaters, Karen and David, face each other while at rest, and then push against each other\'s hands. How do their speeds compare after they push off
A Carnot engine has an efficiency of 39 when the hot reservoir temperature is 328 oC. If we want to improve the efficiency to 27.7, What should be the temperature of the hot reservoir?
The coefficient of static friction among the floor of a truck and a box resting on it is 0.26. The truck is traveling at 84.1 km/hr. What is the least distance in which the truck can stop and ensure that the box does not slide?
Develop useful equations describing the constant temperature (isothermal) flow of an ideal gas through a constant crosssectional area pipe. What important practical flow situations would these equations be useful for? How are real gas effects esti..
a 4603.24 kg open train car is rolling on frictionless rails at 24.04 ms when it starts pouring rain. a few minutes
A grandfather clock is controlled by a swinging brass pendulum that is 1.3 m long at a temperature of 30.°C. What is the change in the length of the pendulum rod
A hydraulic jump, sketched in Fig. 4.19, can occur in a channel with no apparent cause, such as when a fast flowing stream flows from the mountains to the plains.
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