Tala wants to create a sound echo. She can create the echo using a pane of glass or a carpet square. Which one does she choose? Explain.

Heat flows from substances. HA

What type of interaction occurs when a wave hits an object that it cannot pass?

What is the speed of sound in feet per second?

Why is it that parents establish a positive relationship and positive communication with babies and young children

A 60-gallon water heater is initially filled with water at 70°F. Determine how much energy, in Btu, needs to be transferred to the water to raise its temperature to 100°F. Given: The water properties at an average water temperature of 85ºFrho = 62.

At what phase would you expect to find extremely high and low tides?

The Law of Gravitation was mathematically defined by who?

If two cars had the same engine, which delivered the same force to the wheels, but the first car was more massive than the second would the cars perform differently?

The two subspecies ties of astronomy are

Which best explains why scientific theories grow stronger over time?