An optician is prescribing glasses for an aging professor with a near point at 43.0 cm. if the distance from the cornea-lens system to the retina is 2.5 cm calculate the focusing power "p" (in diopters) of the eye when focused at the near point. what power "p" (in diopters) would the optician prescribe in order to provide reading glasses with a book held at the standard 25 cm distance?

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.

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving