37 lbf-in to n-m using 1lbm = 453 grams and 1 in = 2.54 cm b) 100 gram force to newton and lbf c) what is the mass in ibm of an object that weighs 40 lbf at the seaside where g =32.174 ft/s2? d) an object weighing 10 grams is spinning in a centrifuge such that an acceleration of 13.0 g is imposed to it. the arm connecting the shaft to the object is r = 6.0 inches. if a = acceleration = ro- where o = angular speed in rad/s, determine: 1- mass of the object in lbm 2- rpm (revolutions per minute) of the shaft 3- force acting on the object in lbf

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

im not exactly sure but i think its b!

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.