The mass of Earth can be calculated using the fact that the weight of an object (in newtons) is equal to the
force of gravity between the object and Earth. Given that the radius of Earth is 6.4 x 10^6 m, determine its
mass.

Need in all of themmm only answer if you know plsssss

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

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].