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a diffraction grating has 12600 rulings uniformly spaced over width w254 mm it is illuminated at normal incidence by
the marginal cost of production measures the change in total cost of a good that arises from producing one additional
a series rlc circuit is operating at 368 khz at this frequency the phase angle between current and the emf source is
a car has a constant acceleration at 30m its speed is 30 ms and at 30 seconds its speed is 40 ms while it is at rest at
an ac adapter for a telephone-answering unit uses a transformer to reduce the line voltage of 120 v rms to a voltage of
a sinusoidal wave is traveling on a string with speed 745 cms the displacement of the particles of the string
a flexible electric circuit sits on a desk in a magnetic field perpendicular to and pointing into the deskwhich way cw
two plates of 10 mm thickness each are to be joined by means of a single riveted double strap butt joint determine the
a transformer has 4500 turns on a primary coil turns 30000 turns on the secondary coil if the secondary coil shows 25a
a 5-turn square coil with 500-cm sides sits in a uniform 250-t magnetic field such that the angle between the magnetic
a flight of stairs is about 30 m tall nbsphow much work to you do carrying a 50 cake up three flights of stairs nbspyou
discuss the geologic history of the area where you live or grew up discuss some of the major factors that might have
a 750 kg cart is rolling to the right with a speed of 685 ms it encounters an unstretched spring with a spring constant
this course requires the student to present during module 9 a five-minute powerpoint presentation on a physics topic of
during positron emission a proton is transformed into a neutron and a positron which is emitted the positron will fly
in the game of ice hockey a short rubber cylinder called a puck slides on a surface of ice with almost no friction the
an green hoop with mass mh 24 kg and radius rh 015 m hangs from a string that goes over a blue solid disk pulley with
a long round wire of radius a and conductivity sigma is coated with a material of conductivity 01sigma a what must be
the town water supply is operating at nearly full capacity the town board decides to replace the water main with a
the celsius and fahrenheit temperature scales are two common ways to measure temperatures in very day situationsa input
a 1 kg mass is connected to an immovable wall by a spring with spring constant k2 nm and you apply a pushing force of
the sun shines continually at the north pole for six months from the spring equinox until the autumnal equinox yet the
the wing of an airplane has an average cross-sectional area of 11 m2 and experiences a lift force of 91000 n what is
a wire is stretched just taut zero tension at 4440degc find the stress in the wire if it is cooled to 790degc without
a uniform rod of mass 275times10-2 kg and length 0430 m rotates in a horizontal plane about a fixed axis through its