is using electrolysis to separate water molecules in hydrogen and oxygen atoms, a physical or chemical change?

Which statement best describes what happens when a sound source is moving? As the sound source approaches the observer, the pitch decreases and continues to do so as it passes the observer.

Which of these is the best example of translational motion? A. a coin spinning on a desk B. a leaf blowing across the field C. a car in a parking lot with its engine running D. a ballerina standing on one foot

What is the resistance of a nichrome wire at 0.0 ∘c if its resistance is 120.00 ω at 11.5 ∘c?

1 km is equal to Select one: a. 100 m b. 10000 dm c. 1000 mm d. 1000 cm

What is it called when your tv goes fuzzy?

A block of mass 3.5 kg slides down a frictionless inclined plane of length 6.4 m that makes an angle of 30 degrees with the horizontal. if the block is released from rest at the top of the incline, what is its speed at the bottom

What is the wavelength of an earthquake wave if it has a speed of 5 km/s and a frequency of 10 Hz?

The gamma ray released by each decay carries 140kev of energy. find the total energy e released by decays in the 2 hours.

Think of the last five things you read. Now think of a type of reading you havent done recenty have never read. What kind of pattern do you see in your reading? What is your favorite type of reading and your least favorite type of reading?

Consider this statement: Air is matter. Which facts best support the statement? A. Balloons can be filled with air. B. Air is essential for life to exist. C. Air has mass. D. Air is not an element. E. To float on air is to be happy. F.