three equal negative point charges are placed at three of the corners of a square of side d. what is the magnitude of the net electric field at the center of the square? (k=1/4πϵ0=8.99×109n⋅m2/c2 )

Maybe c. im not too positive

No, mark me ! ((brainliest))

Each eukaryotic cell has a plasma membrane, cytoplasm, a nucleus, ribosomes, mitochondria, peroxisomes, and in some, vacuoles; however, there are some striking differences between animal and plant cells.