(a) What is the voltage output of a transformer used for rechargeable flashlight batteries if its primary has 500 turns, its secondary has 8 turns, and the input voltage is 124 V? V (b) What input current is required to produce a 4.00 A output? mA (c) What is the power input? W

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.

Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.