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a car traveling 85 km/hr strikes a tree. the front end of the car compresses and the driver comes to rest after traveling 0.8m. What was the average acceleration of the driver during the collision? Determine the time it takes the car to stop? show work.
A woman is riding a Jet Ski at a speed of 24 m/s and notices a seawall straight ahead. what is the minimum distance from the seawall that she can begin making her turn and still avoid a crash
A woman holds a tube of lipstick 9 cm from a spherical mirror and notices that the image of the tube is upright and one fourth its normal size. Calculate the focal length of the mirror
A neon sign in a shop operates at around 12 kV (rms). A transformer is to step-up the 120 V (rms) line voltage to that value. How many turns must be placed into the primary coil
A permanent magnet is hung from a string ( balanced ) and pointed in an East - West orientation and released. Describe its motion
A certain automobile engine is performing work at the rate of 33900 W (45 hp) with an efficiency of 27%
The pilot of an aircraft wishes to fly due west in a 33.10 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 190 km/h what must its speed relative to the ground be.
A very powerful vacuum cleaner has a hose 2.61 cm in diameter. With no nozzle on the hose, what is the weight of the heaviest brick that the cleaner can lift
What is the smallest probable displacement of shopper.
A 0.25 kg harmonic oscillator has a total oscillation energy of 9.9 J. If the oscillation amplitude is 20.0 cm, what is the oscillation frequency
a narrow charged solid cylinder that is coaxial with a larger charged cylindrical shell. Both are nonconducting, What is the linear charge density of the shell
A diffraction grating with groove spacing of 2 microns is used to observe the balmer series in hydrogen, At what angle will the first order cyan line appear
What is a gyroscope? Discuess the role of angular momentum in operation of a gyrosope. Provide examples of pratical applications of gyryscopes
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