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a research group plans to construct an engine that extracts energy from the ocean using the fact that the water
a nuclear power plant has a reactor that produces heat at the rate of 690 mw this heat is used to produce 250 mw of
the simple harmonic oscillator can be used as a model for the vibration of a diatomic molecule mass and force constant
a cube of aluminum has an edge length of 20 cm aluminum has a density 27 times that of water 1 gramcm and a specific
suppose the ruler in procedure 3 is asymmetrical balancing at the582cm mark the ruler is now supported at the443cm mark
a railroad freight car weighing 42 tons and traveling 10 ms overtakes another freight car weighing 20 tons and
a robot unloads a finished component from a machine and places it on a gravity conveyor the conveyor accelerates from
the center of gravity of a 5 kg lower leg is 18 cm from the knee when pivoted at the knee and allowed to swing the
a uniform 2000 kg beam 10 m long supports a 500 kg weight 3 m for the right support calculate the forces in each of the
a 107 ball is tied to a string it is pulled to an angle of 420 and released to swing as a pendulum a student with a
a projectile is launched above the ground with an initial speed of 50 ms at an angle of 60 degrees above the
a thin soap film n 135 is suspended in air the spectrum of light reflected from the film is missing two visible
from roger ordidge with alterations the magnetic field can store energy but it can do no work therefore another agency
you are given a spherical mirror and wish to determine its properties you place an object on its axis 4130 cm in front
you lay a mirror flat on the floor with one edge against a wall and aim a laser at the mirror the ray reflects from the
you combine two thin lenses by placing them in contact so that their axes coincide forming what is called a compound
you have a lens whose focal length is 517 cm you place an object on the axis of the lens at a distance of 115 cm from
a light beam is traveling through an unknown substance when it exits that substance and goes into air the angle of
light rays in a material with index of refraction 129 can undergo total internal reflection when they strike the
a thermopane window of area 31 m2 is constructed of two layers of glass each 6 mm thick separated by an air space of
a disk with mass m 54 kg and radius r 047 m hangs from a rope attached to the ceiling the disk spins on its axis at a
you send a beam of light from a material with index of refraction 119 into an unkown material in order to help identify
a satellite with a mass of 270 kg moves in a circular orbit 400 107 m above the earths surface a what is the
a tether ball of mass 040 kg is attached to a vertical pole by a cord 15 m long assume the cord attaches to the center
what will happen when two waves of the same amplitude and wavelength meet at the same place and the same time and they