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a slit 09 mm wide is illuminated with light of wavelength 599 nm we see a diffraction pattern on a screen 250 m away
a the energy of the 2s state of some element is -5691ev compute the value of zeff for this stateb the energy of the 4s
imagine that you volunteered to spin on the stool for the classroom demo on the conservation of angular momentum
a fan rotating at 20 rpm slows down by a constant acceleration and comes to a stop in a time of 47 s what is its
what is the acceleration of a rising hot-air balloon if the ratio of the air density outside the balloon to that inside
four moles of a monatomic ideal gas expand adiabatically and its temperature decreases from 300 to 285 ka what is the
a wire carrying a current of 800 a is to be formed into a circular loop of one turn if the needed value of the magnetic
two charges are placed on the x axis one of the the charges q185microc is at x130 cm and the other q2 -21microc is at
an ac adapter for a telephone-answering unit uses a transformer to decrease the line voltage of 120 v rms to a voltage
what does a straight line segment in a graph of position versus time
a transformer has an input coil by nin 450 turns and n out 950 turns if the voltage across the input coil has
three point charges are placed at the vertices of a rectangle as shown a determine the magnitude and direction of the
a transformer has 50 turns on the primary and 10000 turns on the secondary the input primary voltage is 120 v the
how much force is required to move a sled 5 meters if a person uses 60 j of work a 300 n b 12 n c 65 n d 30 n which of
an oxygen molecule consists of two oxygen atoms whose total mass is 530x10-26 kg and whose moment of inertia about an
a top has a moment of inertia of 269times10minus4 kgmiddot m2 and is initially at rest it is free to rotate about a
a person applies a constant horizontal force of 850 n to a block of ice on a smooth horizontal floor neglect friction
a discover the frequency of revolution of an electron by an energy of 500 ev in a magnetic field of 280 microtb compute
a circular loop in the plane of the screen lies in a 067 t magnetic field pointing into the screen if the loops
which substances are needed for photosynthesis to
darwin realized that changes that have occurred in species over time are the result of transformational processes
amino acid analysis of 10 mg of a pure enzyme yielded 581 mug of leu mw 1312 and 362 mug of trp mw2041 what is the
the writing assignment for this lesson differs from previous lessons instead of short answers to three questions worth
identify which nervous system structures are involved in vision describe the damage to the