Electrons are emitted from a conductor when the conductor is
a. exposed to weak light.
b. bombarded by high-speed electrons.
c. cooled rapidly.
d. subjected to a small voltage.

6. what does the symbol ah stand for? o one calorie given off by a reaction the specific heat of a substance the heat capacity of a substance the heat of reaction for a chemical reaction

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i

A2-inch, f/6 telescope has a 3-inch eyepiece focal. its magnifying power is: 36x 4x 3x 2x