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a set of crash tests consists of running a test van moving at a speed of 108 ms 2376 mh into a solid wall strapped
a radioactive material produces 1200 decays per minute at one time and 6 h later produces 300 decays per minute what is
starting from rest a motorist accelerate at 200 ms for 800 second then goes at constant velocity for 300 second he then
what is the minimum potential dissimilarity that must be applied to an x-ray tube to knock a k-shell electron
show that any rotation can be represented by successive reflection in tow plane both passing during the axis of
a parallel-plate capacitor with plate area38 centimeter and air-gap separation 025 millimeter is connected to a 36 volt
a screen is placed 110 m behind a single slit the central maximum in the resulting diffraction pattern on the screen is
a capacitor with air between its plates is charged to 90 v and then disconnected from the battery when a piece of glass
consider an elastic collision in one dimension that involves objects of mass 25 kilogram and 45 kilogram the larger the
in an ultra-low-temperature experiment a collection of atoms enter a special state called a bose-einstein condensate in
two vehicles approach each other both vehicles are moving westward one at 76 kmh the other at 62 kmh find the magnitude
a 700 kg hanging weight is connected by a string over a pulley to a 400 kg block that is sliding on a flat table if the
a particle undergoing simple harmonic motion has a velocity v1 when the displacement is x1 and a velocity v2 when the
a diffraction grating of 3400 slits percent meter is used to analyze the spectrum of mercurya discover the angular
playing shortstop you pick up a ground ball and throw it to second base the ball is thrown horizontally with a speed of
a 2300 kilogram car moving at 15 ms collides with a bridge abutment which stops it in 056 second find the magnitude of
light of wavelength 420 nm is incident normally on a film of water 10 microm thick the index of refraction of water is
a charge of q is placed at the origin while an identical charge is placed on the x axis at x 050 meter a third charge
a horizontal circular platform rotates at a rate of 120 revolutions per minute if a 330 kilogram kid sits on the
a series rcl circuit contains a 30-mh inductor 150-w resistor and 120-mf capacitornbsp the rms current in the circuit
a student tries to raise a chain consisting of three identical links each link has a mass of 240 gram the three piece
the capacitance of a capacitor is 150uf the rms current in the circuit is 002a when the frequency of the generator is
a football is thrown toward a receiver with an initial speed of 162 ms at an angle of 356 degree above the horizontal
a 120kg cart starts down a ramp with a speed of 150 ms the ramp is 0750m high inclined at an angle of 12 degrees by
two identical pieces of rope 10 m long have mass per unit length mu 010 kgm one of the two is soaked in water and