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a quantity of ideal gas requires 800 kj to raise the temperature of the gas by 100 k when the gas is maintained at
a generator produces 60 a of current at 120 v the voltage is usually stepped up to 4500 v by a transformer and
white light is incident normally on a thin soap film having an index of refraction of 134 it reflects with an
two positive charges each of magnitude 1 x 10-6 c are located a distance of 17 cm from each otherwhat is the magnitude
a 600-microc charge is moving with a speed of 630 104 ms parallel to a very long straight wire the wire is 500 cm from
describe the enery transformations that take place as you swing on a swingwhy do you have to keep pumping to keep
in a serios accidenta nuclear power plants reactor vessel cracksand all of the cooling water drains outalthough nuclear
on a hot summer day30 degrees celsiusa pesky little mosquito produced its warning sound near your ear the sound is
two thin lenses with a focal length of magnitude 195 cm the first diverging and the second converging are located 146
suppose you have a spherical balloon filled with air at room temperature and 10 atm pressure its radius is 11 cm you
two microphones are located on the y axis one1 is at the origin and the other2 is at y 15 meters a source of sound is
two ships are moving along a line due east the trailing vessel has a speed of 620 kmh relative to a land-based
if you bring a negatively charged insulator near two uncharged metallic spheres that are in contact and then separate
a plane flies at 125 times the speed of sound the sonic boom reaches a man on the ground exactly 1 min after the plane
placing an object in a beaker filled with water causes displacement of some water the mass of the object is 20 g and
a uniform 45-t magentic field passes perpendiculary through the plane of a wire loop 010 m2 in an area what flux passes
a student is ice fishing in colorado on a frozen lake over spring break he cuts a circular hole in the ice that has a
two identical spheres each carry a charge of - 400 microc the spheres are separated by a distance of 100 m what is the
a 75m long extension cord carries a current of 12 amps the cord is made of two wires carrying currents in opposite
a 1300 kg truck drives around a flat 230 m -diameter circular race course at 27 ms what is the magnitude of the net
a 2kg block is moving to the right at 10ms just before it strikes and sticks to a 10 kg block initially at rest what is
in an amusement park rocket ride cars are suspended from 425 m cables attached to rotating arms at a distance of 600m
a roller coaster car mass 988 kg is about to roll down a track with a circular loop at the bottom the diameter of the
a point source emits 260 w of sound isotropically a small microphone of effective cross-sectional area 0350 cm2 is
ca particle with a charge of -540 is moving in a uniform magnetic field of -121 the magnetic force on the particle is