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a man stands at one end of a 200 kg uniform board what is the mass of the man if the center of the mass of the
a 2000-kg car moving with a speed of 20 ms collides with andsticks to a 1500kg car at rest at a stop sign show that
the total calories for 6 tablespoons of crunchy peanut butter that contains 18g of carbohydrate 48g of fat and 21g of
a 2000 kg car starts at rest at the bottom of a hill the road is flat at an angle of 522 with the horizontal
a wire carrying 8 a of current is bent into a right angle the j lenght 04m and i 3m the wire is completely sourrounded
a hoist is powered by an electric motor that draws 482 kilowatts of electric power the system is 592 efficient ie 592
ball rolls 60cm to the porchs edge drops 40 cm continues rollingon the grass and eventually stops 80 cm from the
a t-bar tow is used to pull 80 skiers up a 600-m long slope inclined at 150 degrees to the horizontal at a speed of
one of the components of polluted air is no it is formed in the high-temperature environment of internal combustion
a prove that a mass on a pendulum will execute steady circular motion if tandelta v2grb if a 40 kg mass goes 15 ms in
suppose the force on an object is 5i-8j n over a displacement of 5i2j metersa how much work is done by that forceb what
draw the skeletal structure for trans-1-bromo-2-isopropylcyclopentane hint make sure the tapered end ie the thin end of
a 90 kg mass is on an inclined plane which is 16 degrees above horizontala if the above mass is connected by a pulley
write a balanced chemical equation for the formation of ch3oh l from the elements in their standard
a ceiling fan is turned on and reaches an angular speed of 120 rev min in 20s it is then turned off and coasts to a
copper can be drawn into thin wires how many meters of 34-gauge wire diameter 6304 x 10-3 in can be produced from the
the spring potential energy is given by u 12 kx2a use calculus to get the equation for a springs forceb the potential
sound exits a diffraction horn loudspeaker through a rectangular opening like a small doorway a person is sitting at an
uranium-238 decays very slowly with a half-life of 447 billion years what percentage of a sample of uranium-238 would
a 4middotcm tall candle is placed 300middotcm from a lens with a focal length of 60middotcm note enter the absolute
a solution is made by mixing 120 g of naoh and 750 ml of 0200 m hno3 calculate the concentration of each ion remaining
in a specific heat experiment 2100 grams of aluminum c9130 jkgk at 1000degc is mixed with 360 g water at 200degca
an experiment requires 150 g of cyclohexane whose density at 25 c is 07781 gml what volume of cyclohexane should be
the position vector for a portion is initially r 50i - 60j 20k and then later is r -20i 60j 20 all metersa what is
the masses of the earth and moon are 5981024 and 7351022 kg respectively identical amounts ofcharge are placed on each