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The outside mirror on the passenger side of a car is convex and hasa focal length of -7.6 m. Relative to thismirror, a truck traveling in the rear has an object distance of 16 m.a) Find the image distance of the truck.b) Find the magnification of the mirror.
A runner is going 25m/s around a curved section of tract that has a radius of 125m. What is the runner's acceleration
One of the mirrors of a Michelson interferometer is moved, and 1000 fringe pairs shift past the hairline in a viewing telescope during the process. haw far was the mirror moved
A circular loop in the plane of the paper lies in a 0.80 T magnetic field pointing into the paper. If the loop's diameter changes from 21.0 to 7.8 in 0.19. what is the direction of the induced current
Scarlet has taken a summer job at a water park. In her act sheglides up a 2.0 m high frictionless ramp then sails over a 5 m widecage filled with hungry sharks. What is the minimum speed at whichshe can begin her ascent of the ramp in order to avo..
An ancient bone contains 47.5% as much 14~C~6 as a piece of living matter with an equal carbon content. How old is the bone
If it takes an average force of 8.79 N to push a 4.35-g dart 4.65 cm into a dart gun, assuming the barrel is frictionless, how fast will the dart exit the gun
Calculate the total number of electrons in a coin of mass of 3.00 grams made of pure copper. Each copper atom has 29 electrons, its atomic weight is 63.5 grams, and density is 8.9 gram / cm^3.
An electric heater is used to heat a room of volume 62m3 . Air is brought into the room at 50 and its completely replaced twice perhour. Heat loss through the walls amounts to approximately 850kcal/h. If the air is to be maintained at 20o C, what mi..
A lead ball weighing 10 N falls 0.8 m from rest into a bucket of sand. The ball stops after making a crater 0.2 m deep. According to the work-energy theorem the work done by the sand on the ball in bringing it to rest is...?
A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70{\rm kg} , what is the final speed of the man
A proton moving at 3.90 X 10^6 m/s through a magnetic field of magnitude 1.76 T experiences a magnetic force of magnitude 8.40 X 10^-13 N. What is the angle between the proton's velocity and the field
a man pushing a mop across a floor causes it to undergo two displacements. compute the direction of the second displacement
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