Two point charges, Qy = -1.0 PC and Q2 = +3.0 PC, are placed as shown in the diagram, What is the vertical component of the electric field at the origin? Let the constant k = 9.0%
109Nmic?
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Asimply means that over time there was some sort of change.

Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.

On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?