Aperson's center of mass is easily found by having the person lie on a reaction board. a horizontal, 2.1-m-long, 6.6 kg reaction board is supported only at the ends, with one end resting on a scale and the other on a pivot. a 65 kg woman lies on the reaction board with her feet over the pivot. the scale reads 26 kg .assume that the woman doesn't move and a position of her center of mass doesn't change. what is the distance from the woman's feet to her center of mass?

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Ain is , is 's of ? 0.62 0.79 1.27 1.50