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a rifle is aimed horizontally at a target 30 m away the bullet hits the target 19 cm below the aiming point a what are
six concentric conducting spheres a b c d e and f having radii r 2r 3r 4r 5r and 6r respectively spheres b and c are
a small ferryboat is 400 m wide and 600 m long when aloaded truck pulls onto it the boat sinks an additional370 cm into
a 100 ball of clay is thrown horizontally with a speed of 9ms toward a 900 block resting on a frictionless surface it
the four tires of an automobile areinflated to a gauge pressure of 20 x 105 pa each tire has an area of 0021 m2 in
1 the magnitude of the force the sun exerts on uranus is 141x1021 newtons explain how it is possible for the sun to
a resistor is made of a material that has a resistivity that is proportional to the current going through it if ithe
an asteroid hits the moon and ejects a large rock from its surface the rock has enough speed to ravel to a point
a satellite is placed in a noncircular orbit about the earth the farthest point of its orbit apogee is 4 earth radii
a double-slit interference pattern has a fringe a ldquofringerdquo is an interference maximum spacing of 40 mm how far
suppose a satellite is in a circular orbit 30 earth radii above the surface of the earth 30 earth radii from the center
long-distance electric-power transmission lines always operate at very high voltage what are the advantages and
liquid-detecting prism devices may be used in a washing machine or other liquid-containing devices if no liquid covers
the radii of the wheels of a compound wheel and axle are 2cm 5cmand 10cmit is found to have an efficiency of 90 if a
two speakers are driven by a common oscillator at 800 hz and face each other at a distance of 125 m locate the points
a 15-kg mass attached to spring with a force constant of 20nm oscillates on a horizontal frictionless track at t0 the
for either type of coefficient of friction what is generally assumed about the dependence of the value of the
a 4mm diameter circular coil of 25 turns and total resistance 0001o lies in the x-y plane at a distance of 3m from a
to monitor the breathing of a hospital patient a thin belt a 200-turn coil is placed around the patients chest suppose
a 500 kg block rests on a horizontal plane a force of 100 n applied horizontally causes the block to move horizontally
a mass is oscillating on a spring with a period of 460 s at t0 s the mass has zero speed and is at x830cma what is the
if a cellrsquos membrane thickness doubles but the cell stays the same size how do the resistance and the capacitance
a police officer is waiting near an intersection he sees a truck running a red light the truck is traveling with a
a civil engineer is asked to design a curved section of roadway that meets the following conditions with ice on the