What must the charge (sign and magnitude of a particle of mass 1.48 g be for it to remain stationary when placed in a downward-directed electric field of magnitude 640 n/c ? use 9.81 m/s2 for the magnitude of the acceleration due to gravity?

Will a heavier bowling ball hit pins better than a lighter bsll

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

How many dots must be added to the symbol to properly represent a standard nitrogen ion? a) 1 b) 3 c) 5 d) 8