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1 again assume that the giraffes blood vessel has a pressure of 400 torr at the bottom the increase from 200 torr to
if one sphere density 3 x 103 kgm3 is placed at the bottom of a tub filled with water and another sphere density 81 x
a 35 m string is stretched between a pulley and a wave generator consisting of a plate oscillating up and down with
the far point of a nearsighted person is 63 m from her eyes and she wears contacts that enable her to see distant
a woman can read the large print in a newspaper only when it is at a distance of 59 cm or more from her eyesa is she
we mixed up some unknown mass of ice at 0 c with 1 kg of steam at 100 c and soon established thermal equalibrium at 55
a heat engine expels its waste at 300 c and has a carnot efficency of 25 without changing its intake temprature what
1 a pair of cylindrical shoes each having a radius of 1 m and height of 5 cm are designed to allow a person to
1 a syringe has a plunger that has a radius of 05 cm a 2 cm long needle is attached the opening in this needle
1 a giraffe has a large blood vessel running down its leg this blood vessel descends 25 m from the heart the
the molar volume of a certain solid is 142 ml at 1 bar and 42715k its melting temperature the molar volume of the
the light source for a double slit experiment has a wavelength of 590 nm the slit separation is 012x10-3 a screen is
a 150 g copper bowl contains 220 g of water both at 200ordmc a very hot 300g copper cylinder is dropped into the water
the generator at a power plant produces ac at 23000 v a transformer steps this up to 335000 v for transmission over
a lens is used as a magnifier to view an ant placed on a piece of paper the image of the ant is 15cm from the lens and
a body of mass 18 kg makes an elastic collision with another body at rest and continues to move in the original
a 50 g ice cube floats in 200 g of water in a 100 g copper cup all are at a temperature of 0degc a piece of lead at
a student drops two metallic objects into a 120 g steel container holding 150 g of water at 25degc one object is a 240
a 100 g aluminum calorimeter contains 250 g of water the two substances are in thermal equilibrium at 10degc two
a careful photographic survey of jupiters moon io by the spacecraft voyager 1 showed active volcanoes spewing liquid
a steel wire with mass 223 g and length 108 m is strung on a bass so that the distance from the nut to the bridge is
a 47- kg box of books is pulled up a 416- m-long inclined plank to a height of 18 m a force of 281 n parallel to the
a horizontal force of 28 n is applied to a 12- kg radio initially at rest on a table with a level surfacewhat is the
two acrobats are balanced on a very thin rod spinning atop a thin pole the first acrobat is 450 kg at a distance of 250
the unpolarized light of intensity inot is passed through two polarizers with axes oriented at 30degrees from each