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the outside mirror on the passenger side of a car is convex and has a focal length of -87 cm relative to this mirror a
compute the force on an airplane which has acquired a net charge of 145 c and moves by a speed of 135 ms perpendicular
a spherical balloon containing nitrogen gas has a radius of 123 centimeter if the balloon is at room temperature and
a balloon having an initial temperature of 183degc is heated so that the volume doubles while the pressure is kept
consider a balloon containing carbon dioxide molecules at room temperature 20degree celsius and atmospheric pressure if
the maximum wavelength for which an electromagnetic wave can eject electrons from a platinum surface is 196 nm when
an oscillator consists of a block of mass 100 kg connected to a spring when set into oscillation by amplitude 490 cm it
a 55 kilogram bowling ball and a 75 kilogram bowling ball rest on a rack 054 meter apart find the force of gravity
an object is launched from a cliff h meters above the ground at t 0 with an initial launch speed of v0 ms at an angle
an unstable high-energy particle is created in the laboratory and it move at a speed of 0962c relative to a stationary
a thin uniform rod mass 050 kg swings about an axis that passes during one end of the rod and is perpendicular to the
normal 0 false false false en-us x-none x-none
a wagon is rolling forward on level ground friction is negligible the person sitting in the wagon is holding a rock the
a transverse wave is traveling with a speed of 300 ms on a horizontal string if the tension in the string is increased
determine how many hours are required for the earth to rotate through 1radian in 1 second of time through how many
a projectile is launched from the ground at t0 with an initial launch speed of v0 ms at and angle of degree above the
a dry cell when short-circuited will furnish about 30 amp for a brief time if its emf is 15 v calculate what is its
what is the pressure change in water going from a 38- cm-diameter pipe to a 23- cm-diameter pipe if the velocity in the
a solid sphere has a temperature of 923 k the sphere is melted down and recast into a cube that has the similar
a cell of emf 30 volts and internal resistance of 001 omega is connected through an ammeter of 005 omega internal
a 2 kg block is initially at the bottom of a 30 incline with a speed of 12ms going up the incline the coefficient of
a piece of styrofoam is completely submerged under water rho 1000 kgm3 it is held under because it is attached to a
a bar is 20 centimeter thick and 30 centimeter wide the bar has a uniform density in width and thickness but has a mass
a car parked in the sun absorbs energy at a rate of 590 watts per square meter of surface area the car reaches a
in a large centrifuge used for training pilots and astronauts a small chamber is fixed at the end of a rigid arm that