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a huge explosion is heard 588 miles away how long does it take the sound to travel that far assume ambient air
a submarine dives to a depth of 191 feet in the ocean what is the force in pounds acting on a hatch that has an area of
a 004 kg aluminum bullet traveling at 444 ms strikes an armor plate and comes to a stop if all its energy is converted
a 465 hz sound wave travels through a substancethe wavelength of the sound wave is measured to be 22 meters what is the
the air inside a bicycle tire pump has 170 joules of work done on it as 849 joules of heat is conducted away from it
a couple of astronauts agree to rendezvous in space after hours their plan is to let gravity bring them together she
runner a is initially 80 mi west of a flagpole and is running with a constant velocity of 70 mih due east runner b is
a 81 g bungee cord has an equilibrium length of 120 m the cord is stretched to a length of 180 m then vibrated at 27 hz
a steel ball of mass 0750 kg is fastened to a cord that is 470 cm long and fixed at the far end the ball is then
to water the yard you use a hose with a diameter of 32 cm water flows from the hose with a speed of 15 ms if you
an inductor with l 145 mh is connected to a circuit that produces a current increasing steadily from 5 a to 135 a over
an ancient club is found that contains 100 g of pure carbon and has an activity of 7 decays per second determine its
a small block is attached to an ideal spring and your question has been answered rate it below let us know if you got
a grating spectrometer is used to resolve first order peaks from two wavelengths of lambda1 53500 nm and lambda2
what is the effect on the interference pattern observed in a youngs double slit experiment when the separation between
a load of 5 kg is suspended by a string from a fixed support a force applied on the load in a horizontal direction to
a small block b is placed is placed on another block a of mass 7 kg and length 15 cm initially the block b is near the
the index of refraction of a glass rod is 148 at t 200degc and varies linearly with temperature with a coefficient of
you are trying to tilt a very tall refrigerator 20 m high 10 m deep 14 m wide and 140 kg so that your friend can put a
a solid sphere of mass m and radius r rolls down a ramp starting from rest at a height h above a nearby horizontal
a 2 kg stone sliding in the x-direction on a frictionless horizontal surface at 5 ms strikes a 3 kg stone after the