Work Can be summarized as an equation.
W = Fd
W = work F = force d = distance
Measured in J Measured in N Measured in m
Example #1: You move a 75 kg refrigerator 35 m.
This requires a force of 90 N. How much work, in
joules, was done while moving the refrigerator?

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.

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?