A 100V battery is connected to two oppositely charged plates that are 10cm apart. i. what is the magnitude of the electric field?

ii. Calculate the electric force exerted on a +200uC point charge.

iii. What is the electric potential energy of the charge when its 8cm and 2cm from the negativity charged plate?

iv. How much work was required to to move the charge from 8cm to 2cm?

v. If the 10 g point charge was at rest at point A, What is the final speed at point B?

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.

The starship enterprise is caught in a time warp and spock is forced to use the primitive techniques of the 20th century to determine the specific heat capacity of an unknown mineral. the 125-g sample was heated to 96.3°c and placed into a calorimeter containing 85.9 g of water at 20.0°c. the heat capacity of the calorimeter was 14.2 j/k. the final temperature in the calorimeter was 24.5°c. what is the specific heat capacity (in j/g°c) of the mineral? enter to 4 decimal places.