A wave has a wavelength of 7 mm and a frequency of 9 hertz. What is its speed?

What are materials that do not allow electricity to pass through them easily.

How much energy is used by a 900 w microwave that operates for 4 minutes? A 260,000 J B 215,000 J C 3600 J D 225 J

Because it implies royal status, the granary at the Conical tower and circular wall of Great Zimbabwe is most similar to what object?

Which Gas Law explains the relationship between temperature and volume? A / Gay-Lussac B / Charles C / Newton D / Boyle

Describe the process of electricity generation and the efficiency and economics of it

Which of the following statements does not describe the structure of an atom? a. An atom has a small, dense center called the nucleus. b. Inside the nucleus of an atom are protons and electrons. c. Protons are positively charged sub-atomic particles.

A. Which skill related fitness component is your strongest and weakest?

A 100 N box is placed on an inclined plane that makes a 30° angle with the horizontal. Calculate the component of gravitational force that acts down the inclined plane. A. 25 N B. 50 N C. 87 N D. 100 N

Approximately how many kelvins are equal to 60 c? a. 289k b. 323k c. 333k d. 413k

What are two ways to change velocity?