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water flowing through a pipe suddenly comes to a section of pipe where the pipe diameter decreases to 86 of its
a 5 ohms resistor is in series with a 25 ohms resistor and the combination is connected to a 10v battery1 which
a carnot engine whose high-temperature reservoir is at 680rm k takes in 530rm j of heat at this temperature in each
a submarine is 302 m horizontally out from the shore and 132 m beneath the surface of the water a laser beam is sent
when responding to sound the human eardrum vibrates about its equilibrium position suppose an eardrum is vibrating with
a physics student drops a vibrating 450 hz tuning fork down the elevator shaft of a tall building when the student
a square steel plate is 020 m on a side and 400 mm thicka find the shear strain that results if a force of magnitude
a cyclotron particle accelerator sometimes called an atom smasher in the popular press is a device for accelerating
a toroidal solenoid has an inner radius of 120 cm and an outer radius of 150cm it carries a current of 150a part a how
when a 90 v battery is connected to a capacitor it puts 800e-4 c of charge on the capacitor when a different battery
3 amperes of current flow through a wirea what net charge flows past a point in the wire each secondb what is the net
a a hollow conducting spherical shell of radius 350 cm has charge 914times105 c what is the strength of the electric
two small identical conducting spheres are placed with their centers048m apart one is given a charge of10multiplied
suppose 300 g of hydrogen is separated into electrons and protons suppose also the protons are placed at the earths
a 8 000-n shark is supported by a rope attached to a 480-m rod that can pivot at the basea calculate the tension in the
in exercise physiology studies it is sometimes important to determine the location of a persons center of mass this
a bridge of length 500 m and mass 810 104 kg is supported on a smooth pier at each end as shown in the figure below a
a 1 490-kg automobile has a wheel base the distance between the axles of 320 m the automobiles center of mass is on the
the filament in an incandescent light bulb is made from tungsten resistivity 56 x 10-8 middotm the light bulb is
two particles each have a mass of 71 x 10-4 kg one has a charge of 67 x 10-6 c and the other has a charge of -67 x 10-6
a square loop with 80 tight turns and sides 15 cm is made with copper wire of diameter 12 mm if a magnetic field
two parallel current carrying wires are separated by 12 cm and each are 50 cm in length the currents travel in the same
small 128g plastic ball is tied to a very light 269cm string that is attached to the vertical wall of a room a uniform
a string with a mass per length of 200 gmm is stretched with a force of 120 n between two points that are 040 m apart
calculate the amount of heat loss though a glass window made of a single pane of glass 0100 in thick if the temperature