Be sure to organize your topics into separate discussions.

a. birth, life, and death of a main sequence star

b. supergiants

c. supernova

d. neutron star

e. pulsar

What's the mass of an object that weighs 32 newton's

A metal's luster is due to energy from the nuclei of its atoms being given off as visible light the free flow of electrons between its atoms light energy being absorbed and given off again by its valence electrons valence electrons giving off energy

Scientific models can be used for a variety of different purposes. Which of the following is not a possible use for a scientific model?. a. study of complex systems. b. study of obsolete systems. c. replace study of the larger system. d.

When light bounces off a surface, which component will be reflected more - the component that is parallel to the surface, or the component that is perpendicular to the surface, and why?

How many million Christmas trees were sold in the year 2000?

Can an object travel at the speed of light? Why or why not?

Determine the amount of potential energy of a 5 Newton's book that is moved to three different shelves on a bookcase. The height of the shelves is 1.0 meter, 1.5 meter, and 2.0 meter

Which atom is involved in giving your heart energy to beat? carbon gold oxygen iron

Which of the following is the most accurate statement concerning the properties of matter? a. they can be written as symbols b. they can be observed and measured c. they cannot be tested or verified d. they change with the amount of matter present

Danilo is sliding down a slide. What forces are acting on him as he slides