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a spring k600nm is placed in a vertical position with its lower end supported by a horizontal surface a2 kg block that
an air-track glider attached to a spring oscillates with a periodof 117 s at t0 s the glider is 26 cm left of the
at a certain point in a pipeline the liquid speed is 8 ms and the gauge pressure is 7x104 pa find the gauge pressure at
a charge of -359c is fixed at the center of a compass two additional charges are fixed on the circle of the compass
a typical power transmission line carries a current of 1000 a about 300 meters above the ground the magnetic field
the average nascar race car weighs 3400 lbs at a recentnascar race the cars went flying around the banked curves
a long straight conducting rod or wire carries a linearcharge density lambda of 20mucm this rod is totallyenclosed
an 80 kg man is one fourth the way up a 10 m ladder that isresting against a smooth frictionless wall the ladder has
what is the minimum work needed to push a 950kg car 810m upalong a 90 degree inclinea ignore frictionb assume
the index of refraction for red light in water is 1331 and thatfor blue light is 1340 if a ray of white light enters
a rifle bullet is fired at an angle of 30ordm below the horizontal with an initial velocity of 800 ms from the top of a
a spherical cavity of radius 400 is at the center of a metalsphere of radius 185 a point charge 600 rests at the very
a long solenoid with 907 turnscm and a radius of 704 cm carriesa current of 200 ma a current of 456 a exists in a
a rectangular box with open top floats on a surface of aswimming pool during a rainstorm box fills with waterpartially
a force with components fxt 200 ns2 t2 and fyt 300 nst ndash 100 n is applied toan object of mass 200 kg if the
a swimmer heading directly across a river 200 m wide reaches theopposite bank in 6 min 40 s she is swept downstream 480
1 what is the acceleration of gravity 14200km from the center of earthhint given the earths radius is 6400km2 how long
the driver of a motorboat that can move at 10 ms in still waterwishes to travel directly across a narrow strait in
an airplane with a speed of 120 kmh is headed 300ordm east of north in a wind blowing due west at 300ordm kmh what is
1 the penrose process has been proposed as a means ofa energy extractionfrom a black holeb waking up students whohave
a 30kg mass is dropped from the edge of 50m tall builiding with an initial speed of zero the mass strikes the ground
a mass undergoes shm with amplitude of 4 cm the energy is 80 j atthis time the mass is cut in half and the system is
a 058 kg block is attached to a spring with a force constantof 116 nm is free to move on a frictionless horizontal
1 the one component of the material of the milky way galaxy that prevents us from seeing and photographing the galactic
a 100 g bullet traveling horizontallt at 755 ms strikes astationary target and stops after penetrating 145 cm