A 0.5 kg tennis ball has speed of 15m/s. what is the kinetic energy of tennis?

Which of the following uses electromagnetic radiation? Select all that apply. a. cellphones b. electric cars c. GPS d. food processor

Which visible colors of light has the longest wavelength?

Which best describes the question "why do people think mutations are dangerous?"

Which statement about the spectrum of light that emerges from a prism is true? A. High-frequency colors bend more than low-frequency colors. B. High-frequency colors bend less than low-frequency colors. C.

What is the magnitude of earth's gravitational force on a 1-kg body at earth's surface?

What countries will see the solar eclipse?

Water is a compound. O A. True B. False

How do air quality scientists ensure the air is cleaned? What steps do they take?

Is a mirrors surface opaque or transparent or translucent?

Sound waves can combine to become bigger or smaller true or false