Two particles are separated by 0.38 m and have charges of 1.25 10-9 C and 1.92 x 10-C. Use Coulomb's law to predict the force between the particles if

the distance is doubled. The equation for Coulomb's law is Fe = kq,92, and

the constant, k, equals 9.00 x 10°Nm2c2

A. 1,50 x 10-7N

B. -3.74 x 10-8 N

C. 3.74 x 10-8 N

D. -1,50 x 10-7N

explanation: grsaa

se

explanation:

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

answer; both surfaces of the membrane are nonpermeable