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an airplane black box contains a bunch of unknown resistances and sources of emfs connected in unknown way such that 1
a pair of power transmission lines each have a 086ohms resistance and carry 940a over 13km if the rms input voltage is
from the difference in mass of a hydrogen atom appendix b to the mass of a proton and an electron table 15 estimate the
at the instant of the figure a 580 kg particle p has a position vector of magnitude 540 m and angle 1 500deg and a
tall pacific coast redwood trees sequoia sempervirens can reach heights of about 106 if air drag is negligibly small
a force f produces an acceleration a on an object of mass m2 kg a force 4f is exerted on a second object and an
suppose that the coefficient of kinetic friction between zaks feet and the floor while wearing socks is 0250 knowing
a 500-nf capacitor charged to 600 v and a 700-nf capacitor charged to 400 v are connected with the negative plate of
two electric charges q1 10 c and q2 -20 c are located 035 m apart how much work is required to double the distance
if the x- and y-axes both carry a linear charge density of 3 ncm what is the electric flux through a spherical surface
an astronaut lands on an earth-like planets and drops a small lead with a mass of 765 g from the top of the spaceship
while a roofer is working on a roof that slants at 440 above the horizontal he accidentally nudges his 860 toolbox
a common flashlight bulb is rated at 030 a and 29 v the values of the current and voltage under operating conditions if
two parallel planes have surface charge densities 50 ncm2 and -30 ncm2 what is the magnitude of the electric field
an astronaut tries to talk his way out of a traffic violation for running a red light 670 nm by telling the judge
an object of mass 5kg has an initial velocity of 10ms if this object has moved a distance of 40m and maintains a final
a 076- air cart is attached to a spring and allowed to oscillate if the displacement of the air cart from equilibrium
jack and jill are standing on a crate at rest on the frictionless horizontal surface of a frozen pond jack has a mass
blocks a mass 450 and b mass 1300 move on a frictionless horizontal surface initially block b is at rest and block a
a toy of mass 0155kg is undergoing simple harmonic motion shm on the end of a horizontal spring with force constant
someone is pulling a suitcase through an airport at constant speed the handle of the suitcase makes an angle of 55
two cars both of mass m collide and stick together prior to the collision one car had been traveling north at speed 2v
an engine flywheel initially rotates counterclockwise at 555 rotations per second then during 245 seconds its rotation
if a man is capable of lifting a 149 lb stone on land how heavy a stone could he lift under water the specific gravity
find the radical acceleration at the edge of a phonograph record of radius 015 m rotating at 78 rev min-1 b the record