Car manufacturers use radiation for wich task?

If 20 beats are produced within one second, which of the following frequencies could possibly be held by two sound waves traveling through a medium along a common path at the same time? A. 18 Hz and 26 Hz B. 47 Hz and 55 Hz C. 38 Hz and 63 Hz D.

If you take any pitch on the keyboard, the next occurrence of the same letter name going towards the left (down) will vibrate: Select one: A. Twice as slow B. Twice as fast C. At 256 Hz plus the harmonic of the first pitch D.

What is the relationship between observations and hypothesis

I don't have it anymore since no one cared to answer

In your own words, explain why light can travel with or without a medium

Why do electrical devices have resistance

Arrange the steps of energy production in the correct order. Tiles consumption of food cellular respiration in mitochondria breakdown of starch into glucose absorption of glucose molecules creation of ATP

Hundreds of millions of years ago, all the continents on Earth were connected to form a giant "supercontinent" called Pangaea. How might ocean currents have differed during the time of Pangaea compared to today? Explain your answer.

You have a ruler that is marked to the nearest half centimeter. Which of these measurements is written with the correct amount of precision? A) 2.0cm B) 3.14cm C) 5 cm D) 100cm

What kind of information can you gather from a stars spectrum