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the area of a typical eardrum is about 50x105 m2what is the sound power energy per second incident on the eardrum at
a squirrel is resting in a tall tree when it slips from a branch that is 44 m above the ground it is a very agile
your friends car has broken down and you volunteer to push it to the nearest repair shop which is 18 km away you
a 150 g glider on a horizontal frictionless air track is attached to a fixed ideal spring with force constant 180 nm at
a toy of mass 0155 kg is undergoing simple harmonic motion shm on the end of a horizontal spring with force constant
a cheerleader waves her pom-pom in shm with an amplitude of 188 cm and a frequency of 0870 hza- find the maximum
a 0500-kg glider attached to the end of an ideal spring with force constant k450 nm undergoes simple harmonic motion
a 220 kg mass on a spring has displacement as a function of time given by the equation xt 740 cm cos 416 rads t - 242
in order to get a flat uniform cylindrical satellite mass of 1000 kg and a radius of 2 m spinning at the correct rate
a mass-spring system oscillates with an amplitude of 560 cm if the spring constant is 228 nm and the mass is 454
a 110 g rifle bullet is fired with a speed of 360 ms into a ballistic pendulum with mass 100 kg suspended from a cord
the unit of horsepower was defined by considering the power output of a typical horse working-horse guidelines in the
a bat strikes a 0145-kg baseball just before impact the ball is traveling horizontally to the right at a speed of 400
a- if the velocity of a pitched ball has a magnitude of 350 ms and the batted balls velocity is 650 ms in the opposite
two vehicles are approaching an intersection one is a 2400 kg pickup traveling at 180 ms from east to west the - x
in an organ pipe open at one end and closed at the other the fundamental frequency emitted is 240 hz finda the next
near the south pole a supply plane going at 120 mph drops a 60 kg supply package into a sled that was initially at rest
a standing wave in a column of air with both ends open has a frequency of 440 hz the next higher harmonic has a
an ambulance is generating a siren sound at a frequency of 2000 hz the velocity of sound is 3450 ms the observer and
an extreme pogo stick utilizes a spring whose uncompressed length is 34 cm and whose force constant is 12times104 nm a
2kg block located on an incline plane with an angle of 60 degrees the force is a horizontal force the coefficient of
a brick is initially 1056 cm high and an aluminum can is initially 1057 cm high by how much must their temperatures be
a highway is to be built between two towns one of which lies 350 km south and 440 km west of the othera what is the
an unspecified force causes a 02-kg object to accelerate at 04 ms2 if 03 kg is added to the 02-kg object and the force
a block with a mass of 40 kg is on an inclined plane with an angle of 20 degrees determine the normal force on the