At the airport, you watch a child playing on the moving walkways. You know that the walkways have a speed of 3 m/s. When the child walks the wrong direction on the walkways, they look to you like they are moving 5 meters every 20 seconds down the walkway (the same way the walkway moves). How fast is the child walking?

Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves

In science and physics what is the standard unit of measure for speed?

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter