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a steel cable with total length 31 meter and mass 150 kilogram is connected to two poles the tension in the cable is
a centrifuge rotor rotating at 10344 rpm is shut off and is eventually brought uniformly to rest by a frictional torque
a man with limited accommodation is prescribed lenses of power -20 diopters for distant vision to theses lenses are
part a a point charge q creates an electric potential of 130v at a distance of 25cm what is q express your answer to
determine what frequency of sound traveling in air at 20degc has a wavelength equal to 18 meter the average height of a
a 160 hertz sound travels through pure argon the wavelength of the sound is measured to be 199 meter calculate the
a small block with mass 00500kg slides in a vertical circle of radius 0450m on the inside of a circular track through
the force stretching the a string on a certain guitar is 142 newton the strings linear mass density is 0007 kgm
part a how much work does the electric field do in moving a proton from a point with a potential of 135v to a point
an am radio station broadcasts with a power of 28 kw at a frequency of 870 khz find the intensity of the radio wave at
a 800-g block is dropped onto a relaxed vertical spring that has a spring constant k 2400 nm the block becomes attached
a long stick has a mass of 05 kilogram and a radius of gyration of 41 meter a barbell has a mass of 9 kilogram and a
a figure skater performs a triple axel she rotates around her longitudinal axis three times while in the air she is
three identical 880kg masses are hung by three identical springs as shown in the figure each spring has a force
a diver is completing a double back somersault the first somersault is done in the layout position at 300 degreesec and
a service station charges a battery using a current of 52a for 70h how much charge passes during the battery express
two resistors of 5 and 9 ohm are connected in parallel a 4 omega resistor is then connected in series with the parallel
an electron is accelerated from rest through a potential difference that has a magnitude of 290 x 107 volt the mass of
compute the magnitude of the relativistic momentum of a proton with a relativistic total energy of 20 x 10-10
the heating element of an electric oven is designed to produce 31kw of heat when connected to a 240-v source what
starting from rest two skaters push off against each other on smooth level ice where friction is negligible one is a
determine what magnifying power is attained using a compound microscope with the following specifications objective
a car is stopped for a traffic signal when the light turns green the car accelerates increasing its speed from 0 to 540
a ball of mass 0120 kilogram is dropped from rest from a height of 125 meter it rebounds from the floor to reach a
a pitcher claims he can throw a 0150 kilogram baseball with as much momentum as a 160 gram bullet moving with a speed