If a point charge of -30 experiences an electrostatic upward force of 27 mN at a certain location in the lab, what are the magnitude and direction of the electric field at that location? the potential difference two square parallel plates is 4 V if the plate separation is 6 cm and they each measure 1.5 m by 1.5 m what is the magnitude of the electric field between the plates?

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

Iknow the first part it is the average star i am not 100% sure

During the 1800s. hope this !