A wave has a period of 0.25s. Calculate its frequency.

Give 10 examples of units you might use or see in any given day

The spreading of waves behind an aperture ismore for long wavelengths and less for short wavelengths. less for long wavelengths and more for short wavelengths. the same for long and short wavelengths. not discussed in this chapter.

How is ultraviolet light and infrared light alike? How are they different?

A steel railroad track has a length of 23 m when the temperature is 7◦C. What is the increase in the length of the rail on a hot day when the temperature is 30 ◦C? The linear expansion coefficient of steel is 11 * 10-6 (◦C) - 1. Answer in units of m.

Which of the following best describes the fate of energy in ecosystems?

An example of objects the move in revolution

How many hops does a kangoroo do in 1 day

What are the average velocity and average acceleration of the tip of a 2.4 cm long hour hand of a clock?

What is the number one and most important rule to remember in soccer?

Why are convection currents; why are they hotter and colder parts of earth