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a lens has a 17 cm focal lengthnbspthe lens is 30 cm from the 25 cm tall image how far from the lens is the object and
two 785-kg hockey players skating at 447 ms collide and stick together if the angle between their initial directions
you are designing a new flat round track for go-carting the wheels and the track have a coefficient of static friction
a toy helium balloon is initially at a temperature of t 20onbspc its initial volume is 00042 m3nbspit is a 10 cm
two charges of 12 nc and 18 nc are separated horizontally by 28 mm what is the resultant field intensity oat a point
when you are home get or borrow a refrigerator magnet and use it to pick up a single metal paper clipnbspnow bring the
the periodic table is organized to show periodic traits of elements name at least three properties of elements in the
an unstretched spring is 1200 can long when you hang an 875 g weight from it it stretches to a length of 1440 cma what
a 250 kg box of textbooks rests on a loading ramp that makes an angle a with the horizonta the coefficient of kinetic
at the local discotheque the speed dial controlling the 5 kg solid and uniform disco ball of diameter 10 cm
a 602 nm light beam hits the flat surface of a certain liquid and the beam is split into a reflected ray and a
you are pushing a 35 kg box across a level floor with a constant speed of 42 ms when you stop pushing the box it
an electron starting from rest acquires 242103 ev of kinetic energy moving from point a to point b how much kinetic
suppose you drop the meterstick and it falls 250 cm for your left hand but only 150 cm for you right hand how much
a high-energy pulsed laser emits a 10-ns-long pulse of average power 34times1011 w the beam is 12times10-3m in radius
question 1 an em wave propagating in the x direction if its b field is pointing in the y direction which direction does
solve in symbolsa high pressure fire hose is mounted on a tank truck weighing w lbs the truck is parked on a icy road
a uniform ladder is 100-m long and weighs 200 n the ladder leans against a vertical frictionless wall at a height of
the drawing shows a rectangular block of glass nnbsp 154 surrounded by liquid carbon disulfide nnbsp 163 a ray of light
a concave mirror f1nbsp 820 cm and a convex mirror f2nbsp -580 cm are facing each other and are separated by a distance
anbsp50nbspm diameter merry-go-round is rotating freely with an angular velocity ofnbsp050nbsprads its total moment of
if the masses were doubled and the distance between the masses remains constant what will happen to the gravitational
in the process of being thrown a 5000 g ball goes from rest to a speed of 100 ms over a distance of 075 m what is the
what is the magnitude of the momentum of an electron in kg m s-1 with a de broglie wavelength of 146
a coin is tossed upward with a velocity of 20 ms near the earth surface the coin will come to rest after exact 10