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What is the influence of friction on banked highway turns? To address this question, first consider a car that encounters a circular highway curve of radius 256m banked toward the turn center. At what speed v0 can this car safely negotiate the turn without friction for a uniform 6.72º banking angle? Under what real-world situation(s) might this circumstance occur? To illustrate the effect of friction upon the vehicle, reanalyze the previous situation in the presence of frictional coefficient 0.751, and determine the maximum speed vmax the car may safely negotiate the turn. Should this coefficient be for static or kinetic friction? By what proportion did the safe turn speed increase in the presence of friction?
Ina mass spectrometer, ions are directed into a magnetic field, where they curve around in the field and strike a detector. If several singly ionized atoms travel at the equal speed through the magnetic field, would you expect them all to be defle..
How much sound power will strike the eardrum of an airport worker 15.3 m from the aircraft? (Use 1.9 10-2 m as the diameter of the ear.)
A speedboat starts from rest at 2.01m/s2 for 7.00s. At the end of this time, the boat continues for an additional6.00 s with an acceleration of +.518 m/s2. Followingthis, the boat accelerates at -1.49m/s2 for 8.00s.
By holding a magnifying glass 35cm from your desk lamp, you can focus an image of the lamp's bulb on a wall 1.8m from the lamp
in fresh water, sound travel at a speed of 1460m/s in the cold air sound travel in speed of 331m/s. how far is he from the site of the explosion
In a defribrillator, which delivers the electric energy stored in the 175x10^-6F capacitor to restore the heart's regular beating, find the energy stored in the charged-up defribrillator
How much work is needed to move a 120-kg refrigerator.
During physic lecture a lone ant makes it way across the classroom floor in two distinct stages starting from the wastebasket, Calculate the magnitude and direction of the ants resultant displacement vector
Defibrillators are used to revive a person when their heart has stopped beating. How do they work? What care must the person administering the treatment take
Find the speed of a satellite moving in a circular orbit just above the surface of Mars. Mars has a radius of 3.40 106 m and a mass of 6.42 1023 kg
Two charged plates create a potential difference of 190 V. At a point halfway between the plates an electron is released from rest. What was the initial speed and direction of the proton
A concave spherical mirror has a radius of curvature of magnitude 27.4 cm. determine Is the image real or virtual
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