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a vacuum cleaner is plugged into a 1200-v socket and uses 30a of current in normal operation when the back enf
the input piston and output plunger of a hydraulic car lift areat the same level as shown in the drawing the
a two-stage rocket moves in space at a constant velocity of 4900 ms the two stages are thenseparated by a small
a 3600-omega resistor and a 11-microf capacitor are connected in series acrossa generator 600 hz 120 v rms determine
a rifle of mass 10 kg fires a 10 g bullet into a 3 kg block of woodwhich is suspended by a thin wire forming a
calculate the average induced voltage between the tips of the wings of a boeing 767 flying at 440 kmh above golden
a centrifuge in a medical laboratory rotates at an angular speed of 3650 revmin when switched off itrotates through 480
sailors use a technique called hiking out what purposedoes positioning themselves in this way serve if the wind
a 5kg box slides up a 10 m long frictionless incline at an angle of30 with the horizontal pushed by a 40-n force
a crate of eggs is located in the middle of the flatbed of a pickuptruck as the truck negotiates an unbanked curve in
a block of mass m is pushed up against a springcompressing it a distance x and the block is thenreleased the spring
a 18 kg child on a playground swing moveswith a speed of 30 ms when the 60 mlong swing is at its lowest point what is
a uniform disk of mass 10m and radius 30r can rotate freely aboutits fixed center like a merry-go-round a smaller
a 450 kg girl is standing on a 162 kg plank the plank originally at rest isfree to slide on a frozen lake which is a
a mass spectrometer has an adjustable magnetic field when the magnetic field is 7000e-2 t a singly ionized hydrogen
a dedicated sports car enthusiast polishes the inside and outside surfaces of a hubcap that is a section of a sphere
a transformer consisting of two coils wrapped around an iron coreis connected to a generator and a resistor as shown in
an electron collides elastically with a stationary hydrogen atom the mass of the hydrogen atom is 1837 times that of
provides the option of exploring the raydiagram that applies to this problem the distance between anobject and its
a strong electromagnet produces auniform magnetic field of 160 t over a cross-sectional area of0200 m2 we place a coil
a steel ball of mass 076 kg strikes a brick wall in anelastic collision incomming it strikes the wall moving 63
a sports car traveling along a straight line increases its speedfrom 197 mih to 597 miha what is the ratio of the final
a pair of slits separated by 0180 mm is illuminated by light having awavelength of lambda 613 nm an interference
a 5 gram bullet moving with an initial speed of 400ms is firedinto and passes through a 1 kg block the block initially
a series rc circuit has a time constant of 10snbsp the battery has a voltage of 50 v and the maximum current just after