Electronic signals that pulse current in a series of 1s and 0s are known as

analog signals

digital signals

electromagnetic signals

semiconducting signals

The behaviors that light exhibits are reflection, refraction, diffraction, polarization, and dispersion. Answer a. True b. False

The light bulbs in an office building give off tremendous amounts of heat. Since heat is a form of energy, this heat could be trapped and used to offset our need for electricity, thus saving energy and money. True False

A pipe that is 0.92 m long and open at both ends vibrates in the second overtone with a frequency of 584 Hz. What is the speed of sound in the air in this pipe

The scientific method isa. the use of modern technology to understand the way the world worksb. the use of controlled laboratory experiments to understand the way the world worksc.

Mass affects/does not affect the conservation of energy?

Hannah has information about an object in circular orbit around Earth. mEarth = 6.0 * 1024 kg G = 6.67 * 10-11 What additional information does Hannah need in order to calculate the tangential speed of the orbiting object?

All objects are attracted to each other by the force of

Samantha wants to study circus performance when she gets to college. She has mastered many physical skills already, but she keeps falling short on her jumps.

Is this Conduction, Convection, or Radiation: The top floor of a building is the warmest.

The law that states the volume of gas is directly proportional to its temperature in kelvins if the pressure and the number of particles is constant is * a. Boyle's Law b. Gay-Lussac's Law c. Einstein's law. d. Charles's law.