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a 10 g bullet moving 1000 ms strikes and passes through a 20-kg block initially at rest as shown the bullet emerges
when a 230-v emf device is placed across two resistors in series a current of 140 a is flowing in each of the resistors
an aluminum rod 100cm long and a steel rod 800cm long are combined to form one rod with a total length of 900cm the
a discus thrower with arm length of 12 m starts from rest and begins to rotate counterclockwise with an angular
two particles each with charge 186 microc are located on the x axis one is at x 100 m and the other is at x 100 m a
compare the probabilities for an oscillating particle in its ground state to be found in a small interval of width dx
a cannon with a mass of 115 kg shoots a cannonball with a mass of 8 kg if the speed of the cannon ball as it leaves the
an 80 kg hockey player is gliding down the ice with a velocity of 75 ms in ve x directonhe is hit by a defensive
a diffraction grating with 300 lines per mm is used in an experiment to study the visible spectrum of a gas discharge
what is the minimum thickness of coating which should be placed on a lens in order to minimize reflection of 646 nm
two narrow slits are illuminated by a laser with a wavelength of 537 nm the interference pattern on a screen located x
a 0413 kg block is attached to a horizontal spring that is at its equilibrium length and whose force constant is 246 nm
a 667 kg car stopped at an intersection is rear-ended by a 1600 kg truck moving with a speed of 135 ms if the car was
find the x- and y-coordinates of the center of gravity of a 400 ft by 800 ft uniform sheet of plywood with the upper
starting from one oasis a camel walks 25 km in a direction of 30 degrees south of west and then walks 30 km toward the
a 96 kg astronaut and a 1100 kg satellite are at rest relative to the space shuttle the astronaut pushes on the
consider the ldquoclearancerdquo concept for the macroscopic view of chemical removal by kidney the effective volume in
a water heater consisting of a metal coil that is connected across the terminals of a 170-v power supply is able to
the rate of airflow into and out of the lungs can be approximated as a sine wave dvdt a sin 2ft where f is the breath
the current-density magnitude in a certain circular wire is j 275 times 1010 am4 r2 where r is the radial distance out
a rock is projected from the edge of the top of the building with an initial velocity of 122 ms at an angle of 53
a gardener pushes a 20kg lawnmower whose handle is tilted up 37degrees above horizontal the lawnmowers coefficient of
steam enters a nozzle operating at steady state with p 40 bar and t 400oc and a velocity of 10 ms the steam flows
an 90 m 240 n uniform ladder rests against a smooth wall the coefficient of static friction between the ladder and the
a 70 g bullet is fired into a 15 kg ballistic pendulum the bullet emerges from the block with a speed of 200 ms and the