Asmall nonrotating planetoid is mainly spherical, with total mass m and radius r, but at the north pole of the planetoid is a slender mountain that towers a further distance r above the surface, and at the south pole is an even taller mountain that towers 2r above the surface. on the top of the north polar mountain is a boulder of mass m. r bb r 2 r n s
how much work would it take to transfer the boulder (by any path whatsoever through empty space) from the north polar mountain to the top of the south polar mountain? assume that the masses of the mountains are negligible relative to the mass of the planetoid.
Answers: 1
Physics, 22.06.2019 13:20, Tess3492
It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).
Answers: 2
Physics, 22.06.2019 18:30, kalithekittenqueen
Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton
Answers: 2
Physics, 22.06.2019 18:50, mariposa91
Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle can be assumed at 30 deg
Answers: 2
Asmall nonrotating planetoid is mainly spherical, with total mass m and radius r, but at the north p...
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