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a kennedy half-dollar has a mass that is 1150 x 10-2 kg the coin is a mixture of silver and copper andin water weighs
a golf ball rolls of a cliff with an inital speed of 130 ms theball falls a vertical distance of 188 m into a lake
a 63-kg water skier is pulled up a 140 degree incline by a ropeparallel to the incline with a tension of 512 n the
a certain part of an aircraft engine has avolume of 16 ft3a find the weight of the piece when it is made of ironb if
two railroad cars each og mass 6500-kg and traveling 95 kmhcollide head-on and come to rest how much thermal engery is
a 40kg child standing on a frozen pond throws a 05kg stone to theeast with a speed of 5ms neglecting friction between
an observer moving at a speed of 0995c relative to a rod measuresits length to be 190m and sees its length to be
green laser light with a wavelength of 521 nm strikes adifraction grating with 3000 linescm how many spots appear on
a stopper tied to the end of a string is swung in a horizontal circle the string makes a 100 degree angle with the
10-kg mass weighs 98 n on earths surface and the radiusof earth is roughtly 64x106ma calculate the mass of earthb
assume that you have a mass of 500kg earth has a mass of597x1024kg and a radius of 638x106ma what is the force of
a harmonic on a string13 m long has a frequency of 156 hz the next higher frequency is 234 hz both ends ofthe string
a rectangular plate has a length of 213plusmn02 cm and a width of 98plusmn01 cm calculate the area of the plate
two 1 microcoulomb point charges are located on the x-axis at x 2m and at x -2m find the magnitude of the electric
a particle is at the position xyz102030m it is traveling with a vector velocity -5028-31ms its mass is 38kg what is its
an 8 ohm speaker is connected across the output terminals of a power amplifier that delivers 72 w what is the current
a ring shaped space station with a radius of 1 km is spinning sothat the speed of the rim is 50 ms a 60 kg man sits on
a student sits on a rotating stool holding two 30 kg objects when his arms are extendedhorizontally the objects are 10
one end of a spring of constant k 100 nm is attached to a wallto the other end is attached a mass m 21 kg the mass
a balloon is filled with helium gas at 200 degrees c and 10 atm pressure 1 atm 101 x 105 nm2 the volume of the balloon
a 500 ml syringe has an inner diameter of 450 mma needle inner diameter of 0220 mm and a plunger paddiameter where you
the hour minute and secondhands on a clock are 025 031 and 037 longrespectively what are the distances traveled by
a spinning disc rotating at130 revmin slows and stops 31 s later how many revolutions did the disc make during this
a boat whose speed in still water is 170 ms must cross a 260m wide river and arrive at a point 110m upstream form where
a motorboat whose speed in still water is 260 ms must aim upstream at an angle of 285 degrees in order to travel