Physics, 11.12.2019 02:31 darkskinnednune
What is the rotational kinetic energy of the earth about the sun? assume the earth is a uniform sphere, mass of the earth is 5.97 x 10^24 kg, mass of the sun is 2.99x10^30 kg, radius of the earth is 6.37x10^3 km, radius of the sun is 6.96 x 10^5 km distance from the center of the sun to the center of the earth is 1.5x10^8 km
Answers: 1
Physics, 22.06.2019 05:30
Blank liquids and gases exert a buoyant force on objects placed in them
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Physics, 22.06.2019 17:30
Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element
Answers: 1
Physics, 22.06.2019 19:40
Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.
Answers: 3
Physics, 22.06.2019 20:30
Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.
Answers: 3
What is the rotational kinetic energy of the earth about the sun? assume the earth is a uniform sph...
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