PLS THIS IS DUE IN 2 MINUTES Which has more momentum, a 0.5kg toy car moving a 5 m/s or a 1000kg real car that is
parked?

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

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.