1. Evaluate the wavelengths from top to bottom, and the frequency from top to bottom. 2. observe the speed of waves 1-7 , how do you describe their speed?

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Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.

Which of these describe conduction transfer of heat between two objects that are touching transfer of heat by the actual movement of war matter the process in which energy is imitated by one of the object transmitted through space and absorbed by another a process in which energy is released by the molecules breaking apart

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest