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Question (a) Show that the minimum stopping distance for and automobile traveling at speed v is equal to v2/2µsg, where µs is the coefficient of static friction between the tires and the road, and g is the acceleration of gravity.
Question (b) What is this distance for a 1200-kg car traveling 95 km/h if µs = 0.75?
Explain how a submarine is caused to submerge and surface without the use of its propulsion propeller and fins
in a diagnostic x-ray procedure 5x10^10 photons are absorbed by tissue with a mass of .6 kg. What is the equivalent radiation dose in mrem
A light bulb is placed 22.3 cm in front of a concave mirror. Calculate the focal length of the concave mirror
In1960 a Tampa, Florida, mother reportedly raised one end of a carthat had fallen onto her son when jack failed. how much work did her force do on the car
On an amusement park ride, passengers are seated in the horizontal circle of radius 6.5 m. The seats begin from rest and are uniformly accelerated for 24 seconds to a maximum rotational speed of 1.4 rad/s.
Graphically determine the resultant of the following three vector displacements: (a) 34m, 25 degrees north of east ;(b) 48m, 33 degrees east of north; and (c) 22m, 56 degrees west of south.
When Skylab recentered the Earth's atmosphere on July 11,19790, it broke into a m,yraid of pieces. What was the kinetic energy of the film vault when it landed
Proton projected toward fixed nucleous of charge +Ze with velocityv0. Initially the particles are very farapart. When proton is at a distance R from the nucleous itsvelocity is 1/2v0.
Find theangular speed about the polar axis, as well as the translationalspeed and acceleration of a point on the earth’s surface at alatitude of 45°N. How do these values compare with the correspondingvalues for a point on the equator? (The radius of..
Tension is maintained in a string. The observed wave speed is 25 m/s when the suspended mass is 3.0 kg. (a) What is the mass per unit length of the string?
On August 19,1987, Alessandro Andrei set a world record in the shot put with a throw of 22.9 m (75 ft 2 in.). What was the maximum height the projectile reached above the ground
A 0.470 kg pendulum bob passes through the lowest part of itspath at a speed of 3.80 m/s. What is the tension in the pendulum cable when the pendulumreaches its highest point
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