Brainless. If y’all do it

How many atoms of nitrogen are in the chemical formula ni(w on

Aplayer uses a hockey stick to push a puck at a constant velocity across the ice. the weight of the puck is 170 n. the coefficient of friction is 0.0600. with what force must the player push the puck so that his force just equals the frictional force? 28.3 n 0.999 n 0.102 n 0.0104 n

Which statements did both aristotle and ptolemy assume? check all that apply.