Ipe ( pronounced ee-pay ) is a brazilian hardwood that can be used as a durable (and expensive! ) construction material for decks, docks and other outdoor projects. every cubic foot of ipe weighs 69 pounds. use dimensional analysis to convert the density of ipe to g/cm^3. how does the density compare to other woods and material on the list above?

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?

As the distance from a magnet increases, what happens to the magnet force?