Atoms of elements in the same group have the same

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.