Awoman pushes a 27 kg lawnmower at a steady speed. she exerts a 180 n force in adirection 31 degrees below the horizontal. the acceleration of gravity is 9.8 m/^2find the magnitude of the vertical force this lawnmower exerts on the lawn. answer in units of n.

Fill in the blank. the number of each type of element in the compound (other than 1) is represented by a small number to the right of the element symbol.

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

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