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a single force acts on a particle-like object of mass m kg in such a way that the position of the object as a function
in a hydroelectric dam water falls 320 m and then spins a turbine to generate electricitysuppose the dam is 80
a hydrometer is a device used to measure the density of a liquid it is a cylindrical tube weighted at one end so that
a hypothetical planets radius is 5750 km and the mass is 500x1024 kga what is the escape velocity on the hypothetical
an ice hockey player is moving at 800 ms when he hits the puck toward the goal the speed of the puck relative to the
if an ice skater with moment of inertia of 80 kgm2 and angular velocity of 4 rads reduces her moment of inertia to 60
a beam of light of wavelength 549 nm passes through two slabs of material of identical thickness d 160 micrometers as
a point charge of 335nanocouiombs is located at the origin and a second charge of -471nanocoulombsis located on the x
two 30 g spheres on 10 m -long threads repel each other after being equally charged as shown in the figure what is the
an ideal monatomic gas is held in a perfectly insulated cylinder fitted with a movable piston the initial pressure of
an ideal step-down transformer has a primary coil of 360 turns and a secondary coil of 24 turns its primary coil is
identical cellos are being tested one is producing a fundamental frequency of 290 hz on a string that is 103 m long and
identical objects are located at the same distance from two spherical mirrors a and b the magnifications produced by
impusle momentum and collisions1 in a car collision the drivers body changes speed from a high value to zero this is
an incandescent lightbulb has a tungsten filament that is heated to a temperature of 400 x103 k when an electric
there is an inclined plane on a table which is 45o angle to the horizontal plane of the tablei if the potential energy
the index of refraction for a certain material is 1399 for red light and 1432 for blue light light containing both of
a if an inductor carrying a 150 a current stores an energy of 0250 mj what is its inductanceb how much energy does the
an infinitely long solid nonconducting cylinder of radius 240m with a uniform charge density p 100 x 10-6 cm3 has a
an infinitely long uniform line of charge withnbsplambda 6x10-6 cm runs along the axis of an infinitely long thin
an instrument is thrown upward with a speed of 15 ms on the surface of planet x where the acceleration due to gravity
an insulated circular ring of diameter 635 cm carries a i2 150 a current and is tangent to a very long straight
an insulated copper wire is wrapped around an iron nail the resulting coil of wire consists of 240 turns of wire that
an investigator collects a sample of a radioactive isotope with an activity of 43x105bq 48hourslater the activity is
an ion that is doubly ionized passes through the velocity selector and into the deflection chamber of a mass