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a playground merry-go-round has a radius of 460 m and a moment of inertia of 240 kgm2 and turns with negligible
a 755 gram grinding wheel 255 cmin diameter is in the shape of a uniform solid disk we can ignore the small hole at the
in a student experiment a constant-volume gas thermometer is calibrated in liquid nitrogen 196degc and in boiling
a box of mass m 25 kg moves along a straight line through a vector displacement d 64 i -34 j m one of the constant
a copper plate has a circular hole with a diameter of 1000 cm in order to drop a pyrex glass marble 10031 cm in
the maximum magnetic field or bo is 0010 t in an electromagnetic wave what is the average intensity of this
as part of a carnival game a 0503-kg ball is thrown at a stack of 158-cm tall 0383-kg objects and hits with a perfectly
an experiment is performed in deep space with two uniform spheres one with mass 300 kg and the other with mass 1060 kg
a rifle with a weight of 35 n fires a 55 g bullet with a speed of 200 msa find the recoil speed of the rifle msb if a
a certain kind of glass has an index of refraction of1650for blue light of wavelength430nm and an index of1615for red
a candle is placed 170 cm in front of a convex mirror when the convex mirror is replaced with a plane mirror the image
a lead sinker of mass 225 grams and density of 113 gcm3 is attached to the bottom of a wooden block of mass 25 grams
lead has a greater density than iron and both are denser than water is the buoyant force on each one the same
an 800 g bullet is fired into a 190 g block that is initially at rest at the edge of a table of 100 m height the bullet
identical objects are located at the same distance from two spherical mirrors a and b the magnifications produced by
a wave pulse travels down a slinky the mass of the slinky is m 094 kg and is initially stretched to a length l 75 m
a square wire with 17 m sides is centered on the origin of the xy-plane a long straight wire carries a current of 20 a
nate the skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding in
in 1996 the solar and heliospheric observatory soho was parked in an orbit slightly inside the earths orbit the
two people carry a heavy electric motor by placing it on a light board 150rm m long one person lifts at one end with a
in a certain vacuum tube electrons evaporate from a hot cathode at a slow steady rate and accelerate from rest through
ethyl alcohol has about half the specific heat of water assume equal amounts of energy are transferred by heat into
a series rlc circuit has components with the following values l 220 mh c 940 nf r 300 and vmax 100 v with v vmax
a step-down transformer is used for recharging the batteries of portable electronic devices the turns ratio n2n1 for a