True or false the potential energy of a freely falling object increases as it begins to fall

Two liquids are mixed and bubbles form. Is this a chemical or physical change? Explain.

How much has the Earth's climate warmed over the last 100 years?

Where are you most likely to build up enough static charge to receive a shock? A. In a carpeted restaurant in the desert B. On a concrete sidewalk on a dry day O c. Walking through wet grass O D. On the dirt in the jungle room at a botanical garden

A cyclist and bike have a combined weight mass of 99 kg. Show that the combined mass weight is 990N

A cannon, located 60.0 m from the base of a vertical 25.0-m-tall cliff, shoots a 15-kg shell at 43.0° above the horizontal toward the cliff.

If a bar magnet is broken into two pieces, each of the resulting pieces

Two passengers leave the airport at Kansas City, Missouri. One flies to Los Angeles, California, in 3.5 hr and the other flies in the opposite direction to New York City in 3.5 hr.

What is the term for the basic unit of electric current? The basic unit of electric current is the.

When a sailboat overtakes a powerboat, which vessel is the stand-on vessel?

Both matter and energy can eneter and exit which of the following systems? A. open only B. both open and closed C. isolated only D. both closed and isolated