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Author Question: A uniform rod has a weight of 40. N and a length of 1.0 m. It is hinged to a wall (at the left end), ... (Read 26 times) |
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
There are more nerve cells in one human brain than there are stars in the Milky Way.