Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of the blocks, as shown. The coefficient of kinetic friction between the blocks and the surface is 0.25. If each block has an acceleration of 2.0 m/s2 to the right, what is the magnitude F of the applied force? 
Definitions:
Amniocentesis
A medical procedure used in prenatal diagnosis, involving the extraction of a small amount of amniotic fluid to test for chromosomal abnormalities and infections.
CVS
Chorionic Villus Sampling, a prenatal test that involves taking a sample of the chorionic villi from the placenta to test for chromosomal abnormalities.
Spontaneous Abortion
A medical term for a miscarriage, referring to the natural loss of a pregnancy before the fetus can survive outside the womb, typically before 20 weeks of gestation.
Amniocentesis
Amniocentesis is a medical procedure used in prenatal diagnosis, where a small amount of amniotic fluid is sampled from the amniotic sac surrounding a developing fetus to test for chromosomal abnormalities and infections.
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