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A human hair is about 80.0 µm thick. If one uses a concave mirror with a focal length of 2.50 cm and obtains an image of -59.0 cm, how far has the hair been placed from the mirror? What is the magnification of the hair?
A plane flies at 1.25 times the speed of sound. It's sonicboom reaches a man on the ground 1.00 min after the plane passesdirectly overhead. what is the altitude of the plane
A 170g mass attached to a horizontal spring oscillates at a frequency of 3.70Hz, Determine Amplitude and Phase Constant
A 120 kilogram crate is pulled across the floor with a constant force of 500 Newton that is applied at an angle of 25o above the horizontal. Calculate the speed of the crate after 20 m of travel
A resonant circuit in a radio receiver is tuned to a certain station when the inductor has a value of 0.196 mH and the capacitor has a value of 28.2 pF. Calculate the frequency of the radio station
An 80.0-kg man jumps from a height of 2.50 m onto a platform mounted on springs, What is the man's speed at the instant he depresses the platform 0.120 m
A 500-turn solenoid is 23 cm long, 1.5 cm in diameter, and carries 65 mA. How much magnetic energy does it contain
Find out the moment of inertia of the wheel if the block rises to a height of = 7.70 cm before momentarily coming to rest.
A large wooden turntable in the shape of a flat uniform disk has a radius of 2.00 m and a total mass of 120kg. The turntable is initially rotating at 3 rad/s about a vertical axis through its center.
The left ventricle of the heart accelerates blood from rest to avelocity of +24cm/s. How much time does blood take to reach its final velocity? If the displacement of the blood during the acceleration is +2.5 cm, determine its acceleration (incm/s2).
A point charge q = +37.0 µC moves from A to B separated by a distance d = 0.178 m in the presence of an external electric field, Find the work done by the electric force
Incident light in air impinges on a diamond. If the angle of the incident ray is 60°from the normal find the angles of the reflected and refracted rays. The speed of light in adiamond is 1.23932x108m/s.
An electron and a proton are eachaccelerated from rest in a uniform electric field of 2.0 ×105 V/m. What are their kinetic energies inJoules after they have each traveled a distance of 0.20 m in the electric field?
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