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The aorta in humans has a diameter of about 1.9 cm and at certain times the blood speed through it is about 60 cm/s. The density of whole blood is 1050 kg/m3, and its coefficient of viscosity is 2.7 10-3 N · s/m2. What is the Reynolds number for blood flow through the aorta?
A 4.0 kg block is on horizontal table attatched to a 6.0 kg block hanging from frictionless pulley. what is the acceleration of the system
A moving sidewalk 95 m in length carries passengers at a speed of .53 m/s. One passenger has a normal walking speed of 1.24 m/s, If she walks at her normal walking speed on the sidewalk, how long does it take to travel the fill length
In Denver, children bring their old jack-o-lanterns to the top of a tower and compete for accuracy in hitting a target on the ground, what is the launch speed needed to hit the bulls-eye
A 220 g air-track glider is attached to a spring. The glider is pushed in 12cm against the spring, and then released. A student with a stopwatch finds that 16 oscillations take 11.5.
A uniform electric field points midway between the positive x and y axies. Its strength is 100Volts/m. A -50nC charge is placed at the position ( 2m, 3m ) and fixed in place. What are the components of the total electric field at the location (..
A generator uses a coil that has 140 turns and a 0.50-T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. assume that each turn of the coil is a square (an approximation), find out the length of the..
A quarter circle of electric charge with a radius of 2.5 m has a uniform charge density of +0.7x10^-6 C/m. At the center of the circle
A small telescope has a concave mirror with a 4.00-m radius of curvature for its objective. Its eyepiece is a 4.25-cm focal length lens. What is the angle of its telescopic image?
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. During the process, What is the tire pressure in pascals
A lightning flash may transfer up to 30 C of charge through a potential difference of 10^8 V. How much energy does this involve
An LRC series circuit with R = 100 Omega, L = 56mH, and C =1.7 muF is powered by an ac voltage source of peak voltage V0 = 210 V, Determine the phase angle of the source voltage relative to the current
a student standing on a train staiton observes that the pitch (frequency) of the train decreases from 888.8 Hz to 862.8 Hz, What is the speed of the train
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