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a rifle is aimed horizontally at the center of a large target 250 meter away the initial speed of the bullet is 500 ms
a flat screen is located 070 m away from a single slit light with a wavelength of 557 nm in vacuum shines during the
a 30-g ice cube at its melting point is dropped into an insulated container of liquid nitrogen how much nitrogen
two ice skaters not paying attention collide in a completely inelastic collision prior to the collision first skater
you walk 30 meter south and 30 meter east obtain the direction and magnitude of the resultant displacement both
kids in a tree house lift a small dog in a basket 400 meter up to their house if it takes 193 joule of work to do this
the average intensity of light emerging from a polarizing sheet is 0722 wm2 and the average intensity of the
a farmland pushes a 20 kilogram bale of hay 33 meter across the floor of a barn if she exerts a horizontal force of 730
a coiled wire forms a spiral with 198 turns a diameter of 255 centimeter and an unscratched length of 45 centimeter
a car wash requires 1200 gallons of warm water a day heated from 50 degrees f to 100 degrees f how large a solar
if this solenoids cross-sectional diameter is 400 centimeter and if you could wrap its coils to a density of 100
a 26 kilogram block slides with a speed of 11 ms on a frictionless horizontal surface until it encounters a springa if
an iceboat is at rest on a frictionless frozen lake when a sudden wind exerts a constant force of 140 newton toward the
on planet tehar the free-fall acceleration is the same as that on earth however there is also a strong downward
a copper wire has a square cross section a on a side the wire is l long and carries a current of i the density of free
a spherical mirror is polished on both sides when the convex side is utilized as a mirror the magnification is 14 what
assume that block c with mass mcnbspis pushed to the left on a surface with a friction by a horizontally applied force
an object initially at rest explodes and splits into three fragments the first fragment flies off to the west and the
a boy pushes horizontally with a force of 210 newton on a 40 kilogram crate to move it across a level ground the
a 10 kg ball is thrown horizontally with a velocity of 15 ms against the wall if the ball rebounds horizontally by a
a motorcycle and 595 kilogram rider accelerate at 30 ms2 up a ramp inclined 10 degree above the horizontala obtain the
assume we have an infinitely long wire carrying a current of 40 a it is bent into an l-shape extending into positive
an object is hung from a spring balance attached to the ceiling of an elevator cab the balance reads 65 newton when the
a crate with scientific equipment slides down a curved frictionless side of lunar crater of the depth h and then up
if astronauts could travel at 0970c we on earth would say it takes 4200970 433 years to reach alpha centauri 420