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an rc circuit contains a resistor of value r 430 and a capacitor with c 005 f after fully charging the circuit with
copper has 85 x 1028 electrons per cubic meter a 12-gauge copper wire is 250cm in length and 205mm in diameter if a
1 the force required to stretch a hookes-law spring varies from 0 n to 764 n as we stretch the spring by moving one end
an 15 by 75 house is built on a concrete slab 29 thick what is the heat-loss rate through the floor if the interior is
a camera lens has a focal length of 215 mmhow far from the lens should the subject for the photo be if the lens is 219
a compound microscope has an objective lens of focal length 100 mm with an eyepiece of focal length 152 mm and it
you bring a 350 wrench into the house from your car the house is 17 degree celsius warmer than the car and it takes 246
a block m 05 kg with an initial temperature of 22 co slides along with an initial velocity vi when it encounters a
a 159 kg block slides on a frictionless horizontal surface with an speed of 154 msec the block encounters an
at 200degc a mainly silicon resistor has a resistance of 665 and a tungsten resistor has a resistance of 752 at this
a park rangers flashlight beam strikes a lake surface the reflected ray makes a 51 angle with the normalwhat angle does
a 65 feet tall woman wants to buy a mirror from the bookstore that is tall enought so that she can see her full figure
light hits the surface of water at an incident angle of 19deg with respect to the normal line what is the angle between
your friends frisbee has become stuck 19m above the ground in a tree you want to dislodge the frisbee by throwing a
a 18kg child slides down a 25m -high playground slide she starts from rest and her speed at the bottom is 18mswhat is
a 2 kg brick is dropped from the top of a building 100 calories of heat energy is added to the brick due to the fall
find the electric field of a solid sphere of charge with the nonuniform charge density rho ar with a an overall
a 23 kg box starting from rest is pushed up a ramp by a 10 n force parallel to the ramp the ramp is 20 m long and
the number of radioactive nuclei in a particular sample decreases to one-eighth of the original amount in 21 dayswhat
a person has a far point of 33 cm what power glasses would correct this vision if the glasses were placed 21 cm from
what is the magnification of an astronomical telescope whose objective lens has a focal length of 71 cm and whose
a wire of length 250 centimeters and radius 03 millimeters is stretched by hanging on a weight of 12 kilograms and the
a resonant circuit in a radio receiver is tuned to a certain station when the inductor has a value of 100 microh and
charges q and 3q are separated by a distance 2m a third charge is located such that the electrostatic system is in
a 840 nf capacitor is charged to 12v then disconnected from the power supply and connected in series with a coil that