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a wire made of gold is 940 m long and has a cross-sectional area of293 multiplied by 10-7 m2 it isobserved that 7821 c
a stone is thrown upward at an angle of 43degrees above the horizontal its maximum height during the trajectory is 55m
two resistors connected in series with each other and a 18 vbattery are connected in a loop the voltage drop across the
an aircraft performs a maneuver called an aileron roll during thismaneuver the plan turns like a screw as it maintains
katie and emily are riding on a circular merry-go-round that has a radius of 5 m katie is on a horse that is 25 m from
the potential difference between the accelerating plates of a tv set is about 25 kv if the distance between the plates
a potential difference of 80 mv exists between the inner and outer surfaces of a cell membrane the inner surface is
a positively charged oil drop is injected into a region of uniformelectric field between two oppositely charged
a uniform electric field of magnitude 350 nc pointing in the positive x-direction acts on an electron which is
an electric dipole consisting of charges of magnitude 390 nc separated by 710microm is in an electric field of strength
a particle with negative charge and mass 250times1015 is traveling through a region containing a uniform magnetic
a group of particles is traveling in a magnetic field of unknown magnitude and direction you observe that a proton
for the system shown the block has a mass of 15 kg and the spring constant k80 nm suppose that the block is pulled
which of the following describes an object withnonzero net force acting on it choose all thatapplya car accelerated at
a person exerts a force of 48 n on the endof a door 86 cm widea what is the magnitude of the torque if the force is
on a certain evening the dew point is 14 degree c and the relative humidity is 50 how many celsius degrees must the
a football is thrown at a speed of77 mph at a wall that is 52 ft away upon colliding with the wall thefootball exerts
a long straight wire has fixed negative charge with a linear charge density of magnitude 40 ncm the wire isto be
what is the mass of the earths atmoshere the radius of the earth is 637 x 106 m and atomosheric pressure at the surface
a pair of speakers separated by 0700m are driven by the same oscillator at a frequency if 690hz an observer originally
at the end of an amusement park ride it is desirable to bring a gon- dola to a stop without having the acceleration
calculate aat what speed earth would have to rotate in order that objects at the equator would have no weight assume
a dog running in an open field has components of velocity vx 33 ms and vy -23 ms at time t1 114 s for the time
a wire 300 m long and 0450 mm2 in cross-sectionalarea has a resistance of 38 at 20degc if its resistance increasesto
calculate the angular and linear speed of the motion of the moon about the earth hence calculate the centripetal force