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a child water pistol shoots water through a 10 millimeter-diameter hole if the pistol is fired horizontally 80
in a double slit arrangement the slits are separated by a distance equal to 100 times the wavelength of the light
if an object on a horizontal frictionless surface is attached to a spring displaced and then released it oscillates
a thick vertical iron pipe has an inner diameter of 0065 meter a thin aluminum disk heated to a temperature of 85oc
suppose a plane flew east along the equator from the prime meridian to the international dateline that is accurately
a grocery cart with a mass of 18 kilogram is pushed at fix speed along an aisle by a force f 12 newton the applied
a ray of light in water index n1 is incident on its surface with air at the critical angle for total internal
when traveling past an observer with a relative speed v a rocket is measured to be 910 meter long when the rocket
a street lamp weighs 160 newton it is supported by two wires that form an angle of 100 degree with each other the
in an adjustable nozzle for a garden hose a cylindrical plug is aligned in the direction of the hose and can be
in the ground state of the hydrogen atom the electron has a total energy of -136 eva find its kinetic energy andb
occasionally huge ice bergs are found floating on the oceans currents assume one such ice berg is 122 kilometer long
sunlight which reflects off smooth planes like those of roads or standing water becomes horizontally polarized in the
an astronaut in his space suit and with a propulsion unit empty of its gas propellant strapped to his back has a mass
a flat circular coil with 105 turns a radius of 10-2 m and a resistance of 0480 omega is exposed to an external
a 53-kilogram mountain climber starting from rest climbs a vertical distance of 768 meter at the top she is again at
on one episode of myth busters adam and jamie try to make a lead balloon that will float when filled with helium the
a long thin steel rod is 50000 centimeter long at 0oc when exposed to the summer sun its temperature is raised to 33oc
a thermos contains 148 cm3 of coffee at 885degc to cool the coffee you drop two 122-gram ice cubes into the thermos the
one rod is made from quartz and another from lead the rods are heated and experience the same change in temperature the
three moles of neon expand isothermally from 0112 m3 to 0307 m3 while 512 times 103 joule of heat flows into the gas
a less dense liquid of density rho1 floats on top of a more-dense liquid of density rho2 a uniform cylinder of length l
a 12gram bullet moving horizontally strikes and remains in a 3 kilogram block initially at rest on the edge of a table
the speed of a 20 kilogram object changes from 30 ms to 40 ms during a 50-sec time interval during this equal time
a solid uniform disk of radius 0250 meter and mass 487 kilogram rolls down a ramp of length 400 meter that makes an