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A mixture of water (density 1000 kg/m3) and oil (density 800 kg/m3) is flowing through a tube of diameter 2 cm with a velocity of 4 m/s. The mass flow rate is measured to be 1.068 kg/s. Determine (a) the density of the liquid mixture, (b) the percentage of oil in the mixture by mass. Assume liquids to be incompressible.
Consider a motor that exerts a constant torque of 25.0 to a horizontal platform whose moment of inertia is 50.0. How long does it take for the motor to do the work done on the platform
The larger molecule HI has a bond length of 160.92 pm (H=1, I=127). its bond's force constant is 314 N/m. what are the frequencies of light for that will excite the lowest energy rotational and vibrational translations
The tub of a washer goes into its spin cycle, starting from rest and gaining an angular speed of 5.00 rev/s smoothly in 10.0 s. At this point the person doing the laundry opens the lid, and a safety switch turns off the washer. The tub slows smoothly..
As part of an excercise program, a woman walks south at a speed of 2.00 m/s for 60 minutes. She then turns around and walks north a distance of 3000 m in 25.0 minutes
A concave mirror used by a person who is shaving or applying makeup creates a virtual image of the face that is 1.60 times larger than the person's actual face, Determine the image distance and focal length
An electron is accelerated by a constant electric field of magnitude 325 N/C. Find the acceleration of the electron
Two billiard balls undergo a glancing collision. Before the collision the first ball was traveling east at 2.6 m/s, what is the speed of the first ball after the collision
A 0.48-kg piece of wood floats in water but is found to sink in alcohol (SG = 0.79), in which it has an apparent mass of 0.047 kg. What is the SG of the wood
there are two telescopes observing at night. the first telescope is 0.3m and has a focal ratio of f8. the second
Two spheres are launched horizontally from a 1.10 {rm m} high table. Sphere A is launched with an initial speed of 5{rm m/s}. Sphere B is launched with an initial speed of 3.0 {rm m/s}.
Waly Whacko claims to have invented a heat engine that will revolutionize industry. What error did he made in his choice of temperature scale
A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. What is the acceleration of the rising balloon
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