40.0 pj of energy is stored in a 3.00 cm x 3.00 cm x 3.00 cm region of uniform electric fielo. part a what is the electric field strength? express your answer with the appropriate units.

Question 1 (5 pts): what is the maximum distance for which you can you resolve the two individual headlights of an on-coming truck as two separate lights rather than one if the headlights are separated by 2.00 m and your eye has a diameter of 1.00 centimeter? assume a wavelength of 500 nm.

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?

If element x has 99 protons how many electrons does it have