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You are called as an expert witness in the trial of a trafficviolation. The facts are these: A driver slammed on his brakes andcame to a stop with constant acceleration. Measurements of histires and the skid marks on the pavement indicate that he lockedhis car's wheels, the car traveled 192 before stopping, and thecoefficient of kinetic friction between the road and his tires was0.750. The charge is that he was speeding in a 45 zone.draw a free body diagram
Find the magnitude of the acceleration of the particle. What are the x- and y-coordinates of the shell where it explodes,associated to its firing point.
A ?ghter plane ?ying at constant speed 420 m/s and constant altitude 10000 m makes a turn of curvature radius 2800 m. On the ground, the plane's pilot weighs (62 kg)(9.8 m/s2) = 607.6 N. W
Provide your answer in m/s in scientific notation to three significant digits (i.e. 1.15*10^2)
A steel cable is to support an elevator whose total (loaded) mass is not to exceed 3100 kg. calculate the diameter of cable required
To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, Over what distance must the lens be movable
Light from a He-Ne laser (= 632.8) strikes a pair of slits at normal incidence, forming a double-slit interference pattern on a screen located 1.10 from the slits. The figure shows the interference pattern observed on the screen.
The average lifetime of a muon is about 2 µs. Estimate the minimum uncertainty in the rest energy of a muon
A classroom slide projector projects an enlarged (50 times taller) image of a 24mm high photographic film onto a screen located 10 meters from the projector. What focal length lens (cm) does the slide projector require to produce a sharply focus i..
a skier starts from rest at the top of a hill inclined at 10.5 degrees. The hill is 200m long and the coefficient of friction is .075. How far does she slide before coming to a rest
Consider the 642 N weights held by two cables shown. The left-hand cable had tension T2 and makes an angle of thelta2 with ceiling. The right-hand cable had tension 460 N and makes an angle of 47 degrees with the ceiling.
A meteoroid is speeding through the atmosphere, traveling east at 21.5 km/s while descending at 19.0 km/s. What is its speed, in km/s.
a 200kg ball is shot from a 2200kg cannon horizontally and positivly at 200m/s. what is the cannons speed, in respect of Earth
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