A wave that can travel through empty space and

through matter

Laser light exhibits much stronger interference effects than light from a flashlight. This is because: laser light has a much shorter wavelength than light from a flashlight. laser light is both coherent and monochromatic.

Chromatic aberration affected: a. spectrographs b. radio telescopes c. refracting telescopes d. reflecting telescopes

In one eight-hour workday, a forklift operator at a particular distribution warehouse lifts a total of 100,000 N of boxes. Each box must be lifted to a height of 1.5 m and carried an average of 10 m to the shipping dock.

What information is needed to calculate acceleration? A velocity and time B change in velocity and time C displacement and time D change in distance and time

If you cannot get a chair to move across the floor, it is because ___ friction opposes your push. a. sliding b. static c. rolling d. fluid

Six light bulbs are connected in series with a 9.0 volt battery. What is the voltage across each bulb?

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

It's a hot and sunny day and you decide to go for a drive. When you open your car door, it's a lot hotter than outside. Why is that

Which compound is composed of oppositely charged ions

Sara, who weighs 66 kg, is on a guilt trip after eating a 788-Calorie (788 kcal) breakfast of pancakes loaded with fruits, cream, and syrup. She decides to work out before going to her weekly weight-watchers' meeting.