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A tractor pulls a log 900 meters, and the tension in the cable connecting the tractor and log is approximately 16,691 newtons.The direction of the force is above the horizontal.Approximate the work done in pulling the log.
(Round the answer to two decimal places.)
Helper T cells
A type of white blood cell that plays a central role in the immune response by activating other immune cells to fight infection.
Infects
The process by which a pathogen enters, invades, and multiplies in a host organism, causing disease or infection.
Immunotherapy
A type of cancer treatment that helps your immune system fight cancer.
Cytotoxic T cells
A type of lymphocyte that kills cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.
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