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two resistors connected in series with each other and a 10 vbattery are connected in a loop the voltage drop across the
the stretched length of a spring is 428 m a ribbon is tied aroundthe spring at a point near its center a pulse created
a 447-kilogram object is pulled 75 meters along a horizontal surface with a 130-newton force at 28o above horizontal
a spring is stretched between two posts when a pulse is produced at one end of the spring it makes 4 back-and-forth
a flower pot falls from the ledge of a building nbspa person in an apartment below coincidentally holding a stopwatch
the weight of the atmosphere above 1 m2 of earths surface is about 100000 n density of course become less with altitude
a wooden block with equal sides of 4 cm is floating in water if the density of the block is half the density of water
a rocket is launched at an angle of 540deg above thehorizontal with an initial speed of 97ms the rocket moves for 300 s
the weight of a block of metal is measured with a scale first in air then in water find the specific gravity of the
a charge of 219 microc is held fixed at the origin a second charge of 219 microc is released from rest at the position
an object is solid throughtout when the object is completely submerged in ethyl alcohol its appart weight is 152 n when
the heating element of a room heater is rated at 750w when itis operated from a 120v power supplya what is the
a 003 kg lead bullethits a steel plate and melts and splatters on impact assuming that the bullet recieves 80 of the
1 if the tension in a guitar string is increased by 20 by whatpercentage does the wave speed increasea 45b 95c 142
solid cylinder a long nonconducting solidcylinder of radius 49 cm has a nonuniformvolume charge density rho that is a
consider a charged metallic spherical shell of radius a175 cmthe potential at a distance of r60 cm from the center of
assuming euclidean geometry in an expanding universe and usinghubbles law find a formula which gives the angular size
a person throws a rock straight up into the air at the moment itleaves the persons hand it is going 33mph when the rock
an 8 lb weight stretches a spring 4ft the system resides in amedium offering a resistance to the motion equal to 15
a wrench is thrown at a speed of79 mph at a wall that is 44 ft away upon colliding with the wall thewrench exerts 77lb
a particle of charge 30 x 10-8 is in a unifromelectric field directed to the left it is released from rest andmoves a
an experiment youre designing needs a gas with gamma 159 you recallfrom your physics class that no individual gas has
200 ml of coffee density 1000kgm3 specific heat 4186jkg c is insulated in a mug at a temp of 85c if 25ml of cream
a 100g aluminum c900jkg c calorimeter contains 250 g of water c 4186jkg c the two substances are in thermal