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a light beam traveling through air enters a slab with n 250 at a 45ordm angle with respect to the normal then exits the
a motorcycle and a police car are moving toward one another the police car emits sound with a frequency of 502 hz and
a 16-kg cylinder radius 012m length 05m is releasedfrin rest at the top of a ramp and allowed to roll with
a 9 volt battery contains a total of 178 coulombs when thebattery is connected in a circuit the positive and
a copper rod has a length of 13 m and a cross-sectional area of47 x 10-4 m2 one end of the rod is incontact with
a 10 cm x 10 cm x 10 cm block of steel density of steel 7900 kgm3 is suspended from a spring scale the scaleis in
a 550 kg diver fallsfreely from a diving platform that is 300 m above the surface of the water in apool when she is
the tires of a car make 65 revolutions asthe car reduces its speed uniformly from 110 kmh to 60 kmh thetires have a
a 500-kg partridge is suspended from a pear tree by an ideal spring of negligible mass when the partridge is pulled
when a ceiling fan rotating with an angular speed of270 rm rads is turned off a frictional torque of0140 rm n cdot m
on the planet newtonia a sample pendulum having a bob with mass 125 kg and a length of 1850 cm takes 142 s when
the angular speed of an automobile engine is increased at aconstant rate from 1200 revsmin to 3000 revsmin in 12
a car drives straight off of a flat 79m high cliff if the carlands 64m from the base of the cliff then how fast was the
two balls a and b are suspended next to each otheron two 30 cm string hanging there just touching ball ahas a mass of
an rlc circuit is used to tune a radio into an fm stationbroadcasting at 885 mhz theresistance in the circuit is 120
a wheel accelerates with a constant angular acceleration of 45rads2 if the initial angular velocity is 10 rads what is
as part of your summer job asa design engineer-assistant at a nasa contractor your team has been assigned to design a
a 30-kg block is traveling in the -x direction at 50 ms and a10-kg block is traveling in the x direction at 30 ms a
a bicycle wheel rotates uniformly through 20 revolutions in 40 s what is the frequency of the wheels revolution
what do we call mineralsthat have the same combinations of elements but a different arrangement of
a double-slit experiment is performed underwater with a submergedhene laser suppose that the separation of the slits
the temperature in an electric oven is 153 degc the temperature at the outer surface in the kitchen is 355 degc theoven
a baton twirler throws a spinning baton directly upward as itgoes up and returns to the twirlers hand the baton turns
when you take a bath how many kilograms of hot water 364degc must you mix with cold water 144 degc so that
a steel section of the alaskan pipeline had a length of 638 mand a temperature of 218 degc when it was installed what