A skater of mass 60 kg has an initial velocity of 12 m/s2. He slideson ice where the frictional force is 360J. How far will the skater slide before he stops?

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

The star nearest to our sun is proxima centauri, at a distance of 4.3 light-years from the sun. how far away, in km, is proxima centauri from the sun?