Answer: C
Explanation: As the universe stretches it expands more and more the distance between each other. Hope this helps.
Answer:
Electric field, 
Explanation:
Given that,
Charge, 
We need to find the magnitude of electric field 17.1 cm (0.171 m) above an isolated charge. Electric field at a point is given by :
So, the electric field is 
. Hence, this is the required solution.
So we want to know what is the kinetic energy of a plate with mass m=2 kg that falls from height h=15 m. So initially the plate has potential energy Ep=m*g*h=294.3 J. That potential energy converts completely into kinetic energy right before the plate hits the ground. Our answer is close enough to 300 J so the correct answer is c. 300 Joules
Answer:
Matter in the universe is made up of atoms, particles if electrons were to be stationary, they would have fallen into the nucleus because of electrostatic force acting on them destroying very existence of an atom we know.
