Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
a converging lens has a focal length of f 43 cm for blue light and f 53 cm for red light an object is placed 140 cm
your eye diameter 25 cm is able to focus the image of a tree on your retina the tree is 24 m tall and 85 m away what is
1 reactance in general is not a function ofa frequencyb amplitudec phased resistivitye none of these2 in media the
each of the plates of a parallel plate capacitor has an area of 106cm2 and a plate separaton difference of 2mm suppose
in the figure below a nonconducting spherical shell of inner radius a 160 cm and outer radius b 210 cm has within its
if a blue filter is placed over a light source aperture so that the incident rays are blue and these rays pass through
a 240 h coil with a resistance of 395times102 ohm is in series with a 486times103 ohm resistor this circuit is
the magnetic field perpendicular to a single 137 cm diameter circular loop of copper wire decreases uniformly from 0600
a person with a near-point distance of 32 cm is able to get a usable magnification of 12 with a particular magnifying
an automobile tire is inflated with air originally at 100degc and normal atmospheric pressure during the process the
a wire loop of radius 050 m lies so that an external magnetic field of magnitude 030 t is perpendicular to the loop the
a sphere of radius r starts from rest and rolls without slipping along a curved surface dropping through a vertical
a 22 kg wood block hangs from the bottom of a 12 kg 10-m-long rod the block and rod form a pendulum that swings on a
suppose in the drawing that i1 i2 424 a and that the separation between the wires is 00215 m by applying an external
a mass of 20g is attached to a spring and undergoes simple harmonic motion with a period of t07 s the total energy of
a closely wound coil has a radius of 630 cm and carries a current of 170 a how many turns must it have if at a point on
a simple harmonic oscillator consists of a block of mass 140 kg attached to a spring of spring constant 165 nm when t
a ferris wheel at a carnival has a radius of 8 meters and rotates once every 15 seconds a 101 scale model of the ferris
a diverging lens with a focal length of -14 cm is placed 11 cm to the right of a converging lens with a focal length of
what fraction of the power radiated by the sun is intercepted by the planet mercury the radius of mercury is 244 x 106
a farsighted woman breaks her current eyeglasses and is using an old pair whose refractive power is 1990 diopters since
an amateur astronomer decides to build a telescope from a discarded pair of eyeglasses one of the lenses has a
suppose a 117times104 kg spaceship left earth at a speed of 090c what is the spaceships kinetic energy compare with the
a lidar laser radar gun is an alternative to the standard radar gun that uses the doppler effect to catch speeders a