The New England Merchants Bank Building in Boston is 152 m high. On windy days it sways with a frequency of 0.12 Hz , and the acceleration of the top of the building can reach 1.6 % of the free-fall acceleration, enough to cause discomfort for occupants.

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Which type of basaltic lava flow has a fairly smooth

What is the weight of a 8-kg substance in n, kn, kg·m/s2, kgf, lbm·ft/s2, and lbf?