17. A small object of mass 3.80 g and charge -18.0 μC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What is the magnitude and direction of the electric field?

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Q: ½ (m/s) 4 2 t (s) 4 1 3

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Q: onvert 180 miles per hour to feet per second.

A: Convert 180 miles per hour to feet per second. 5280 feet = 1 mile 1 hour =3600 seconds

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Dielectric Constant Of Water

Water constitutes about 70% of earth.  Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.