in figure skating, a triple axel is a jump in which the figure skater leaps into the air while facing forward, performs 3.5 revolutions, and then lands facing backwards. during the spin, the skater hugs his/her arms close to the body. choose the answer that best explains why the figure skater does this. think about the experiment you performed on the rotating stool.

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.

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.

When flexing to a reflective style, one should be specific, brief and to the point, and maintain a fast and decisive pace?