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a modern-day zeppelin holds 12000 m3 of helium what is the buoyant force on the zeppelin at sea
a 5-kg block being pulled across a table by a horizontal force of 90 n also experiences a frictional force of 30 n what
a streptococcus bacterium can reproduce itself in about 30 minutes if there is adequate nutritional materials and
a man-made satellite orbits the earth in a circular orbit that has a radius of 10000 km the mass of the earth is 597e24
a pilot wants to fly 800 km due north he can fly 500 kmhr in still air he finds he has to head his plane 20deg e of n
a mass of 10 kg is placed on a horizontal surface with friction with a coefficient of static friction of 081 and
suppose that an object explodes in outer space a distance d 1 times 106 km from theearth gamma ray photons with
an ant crawls on the surface of a ball of spherical coordinates rb phiwt thetapi21 14 cos4wt find acceleration and xy
nfl player gerald sensabaugh recorded a 46 inch standing vertical jump at the 2005 nfl combine at that time the highest
a sound wave has a frequency of 2009 hz what is the distance between crests or compressions of the wave take the speed
q1 show that alcohols you would obtain by reduction of the following carbonyl compoundsq2 give the structures of the
a 20cm radius centrifuge is spinning if the test tube travels a distance of 50 meters around the centrifuge in 3
two balls roll down a set of very low friction tracks taking different paths but ending at the same vertical height the
picnickers see a lightning flash and hear the resulting thunder 95 s later if the storm is traveling at a rate of 19
a magnetomotive force is supplied by a current of one ampere through 100 turns the magnetic circuits of a steel core of
these questions are to be answered with a short paragraph you will be graded on the physics content of your answer as
a 400-kg block is sliding up the plane on a 300 degree incline as shown in fig 5-5 if the coefficient of kinetic
1 marty mcfly needs to get back to the future with hisdelorean to do that he needs to reach 3911 ms 88 miles perhour at
a wave has a wavelength of 6 mm and a frequency of 12 hertz what is its speed mmswhat is the wavelength of an
the drawing shows a parallel plate capacitor that is moving with a speed of 30 ms through a 34 t magnetic field the
a parallel plate capacitor with a plate area of 220 cm2nbspand air in the space between the plates which are separated
a 50 x 106 ohm resistor is connected in series with a 40 x 10-6 f capacitor if the capacitor is discharged what is the
for measuring simple pendulum that 31 using the hand timer measure 25 complete cycles from this measurement calculate
you hang a 150 g mass on a spring and start it oscillating with an amplitude of 5 cm and a phase constant of pi3a if
a particle is subjected to the vx -fx where f is a constant the particle travels from x 0 to x a in a time interval