The system shown in Figure 9-55 consists of a 4.0-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging 2.0-kg block. The pulley is a uniform disk of radius and mass Find the acceleration of each block and the tension in the string.
This case study explored autosomal recessive traits. Autosomal recessive traits are traits that are controlled by a recessive gene carried by non-sex chromosomes. These traits are only expressed in individuals who have two recessive genes, one from their mother and one from their father. Mathew Miller was born with a disorder known as Maple Syrup Urine Disease where amino acid builds up in the body and can cause brain swelling and possible death. The fact that neither of Mathews parents, Emma and Jacob, have this disease automatically implies that this is a recessive gene and both parents are carriers. To be a carrier of a disorder means to have the dominant and the recessive gene also known as being heterozygous for a trait. If the gene for this disorder was dominate at least one of th