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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
part a determine the radiation pressure due to a 100 watt bulb at a distance of 40 centimeter from the center of the
consider the following1 compute the absolute pressure at the bottom of a freshwater lake at a depth of 222 m suppose
a young hockey player stands at rest on the ice holding a 13 kilogram helmet the player tosses the helmet with a speed
the four tires of an automobile are inflated to a measure pressure of 20105 pa each tire has an area of 0024 m2 in
a bale of hay of mass 150 kilogram is pulled at a constant velocity across a barn floor by a hook that pulls at an
a 270-n sphere 020 m in radius rolls without slipping 60 m down a ramp that is inclined at 34deg with the horizontal
a 45 kilogram table can be pushed along the ground at a constant speed with a force of 170 newton find the coefficient
a large man sits on a four-legged chair with his feet off the floor the combined mass of the man and chair is 950 kg if
determine how much force is needed to keep a 62 kilogram crate moving across a floor at constant speed if the