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hot air balloons float in the air because of the difference in density between cold and hot air in this problem you
1 a particle accelerators work by creating a large potential difference for electrically charged particles to
the average speed of a greyhound bus from lansing to detroit is 1175 kmh on the return trip from detroit to lansing the
can the average person tell that a 2026 hz sound has a different frequency than a 2030 hz sound without playing them
consider an electric dipole with moment of inertia i consisting of point charges q and -q which are separated by a
the average lifetime of muons at rest is 220 mus a laboratory measurement on muons traveling in a beam emerging from a
the average distance between the proton and the electron in a hydrogen atom is 529 x 10-11nbspm with the particles
an average bolt of negative lightning lightning composed of electrons goes from cloud to ground and carries a current
1 an adult generates 72 w of power as she pulls a sled forward across a flat snowy surface with a force of 80 n the
you attach a speaker to an air track cart and then attach the cart to one end of the air track by means of a spring and
a circuit made up of 6 resistors is shown in the figure with resistances r1 23 omega r2 15 omega r3 32 omega r4 61
atoms can be ionized by thermal collisions at very high temperatures one such ion is ne9 a neon atom with only a single
atoms can be ionized by thermal collisions at very high temperatures one such ion is be3 a beryllium atom with only a
atomic clocks were used in hafele and keatings experiment which supposedly helped to prove time dilationtime dilation
the 2 conducting spheres are charged to -q and 5q and are placed as shown in the figure the potential at point p is 144
atmospheric pressure on venus is about 90 times that on earth a steel sphere with a bulk modulus of 158 gpa has a
an athlete loses 65 mj of heat during a strenuous exercise period work efficiency is 20 if the athleteconsumes enough
consider the circuit shown in the below figure given that epsilon1 6 v and epsilon2 12 v and r1 300omega r2 100
astronauts in space weigh themselves by oscillating on a spring suppose the position of an oscillating 72kg astronaut
1 a cylinder contains 12 l of oxygen at 20oc and 15 atm the temperature is raised to 35oc and the volume is reduced to
1 in an experiment to determine the value of pi a sphere is measured to have an average value of 637 cm for its
an astronaut travels from a distant star to the earth at speed 0981c the astronaut ages 37 years during his journey
an astronaut sitting at radius 470m on the inner ring of a space station moves a distance of 50m along a circular arc
astronaut alan shepard famously hit a golf ball from the moons surface where the acceleration of gravity is only 162ms2
assume that the faraday cup and grounding cage act like coaxial conducting cylinders ignore that there is a bottom to