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a 20 kilograms kid is on a swing that hangs from 28 meter long chains find what is her maximum speed if she swings out
the plate on the back of a certain computer scanner says that the unit draws 029 a of current from a 120 v 61 hz linea
determine the pressure exerted on the ground by a 65 kilogram man standing on one foot suppose that the bottom of the
on his honeymoon james joule attempted to explore the relationships between various forms of energy by measuring the
a second baseman tosses the ball to the first baseman who catches it at the same level from which it was thrown the
part a assuming negligible friction determine the speed of the riders at the bottom of its arc given the systems center
one solenoid is centered inside another the outer one has a length of 50 centimeter and contains 6800 coils while the
a series rlc circuit contains 42 omega resistors a 42 mh inductor and a 22 microf capacitor it is powered by a 120 volt
an electron moves to the right with a speed of 086c relative to the laboratory frame a proton moves to the left with a
two polarizers have their polarizing axis at 90 degree a third polarizer is located in between the two polarizers and
a 24 volt battery is connected to a capacitor resulting in 47 microc of charge stored on the capacitor obtain how much
a wire 30 centimeter long with an east-west orientation carries a current of 3 amp eastward there is a uniform magnetic
an unstable particle at rest breaks up into two fragments of unequal mass the mass of the lighter fragment is equal to
a river flows due east at 150 ms a boat crosses the river from the south shore to the north shore with maintaining a
compute the force on an electron if the accelerating plates are held at a potential dissimilarity of 600 note this is
an oil slick on water is 90 nanometers thick and illuminated by white light at an incidence angle of 00 degrees to its
a tennis ball is hit vertically upward with a speed of 210 ms from the roof of an office building that is 275 feet
a power station delivers 520 kw of power at 12000 v to a factory through wires with total resistance 30 find how much
a x-ray with a copper target is operated at 44ma and 40kv if the x-ray tube current is reduced to 40ma what will be the
assume a ball of mass m 755 kilogram is dropped from rest at height h 129 meter above the groundassume the ball hits
andy drops a ball from a height of 128 m the ball hits the ground and rebounds to 40 percent of its original height
a subatomic particle created in an experiment exist in a certain state for a time of 78e-20 seconds before decaying
through the cold war american submarines operated as lone wolves at extreme ocean depths for many months at a time
a wet shirt weighing 515 n hangs from the center of a 111 m long clothesline causing it to sag 460 cm below the