From 70 mph, the hefty Challenger SRT Hellcat came to a stop in only 159 feet. Thatâs impressiveâand in the neighborhood of the 150- and 156-foot stops we recorded in our long-term Camaro and Mustang.
1 Answer. , works at Studying. Gas giants do have a solid core. Its mostly hard rock, and is surrounded by hydrogen and light gases. It is believed that due to the high pressure , the hydrogen near the core is metallic, but the exact physical composition is a mystery.
1 Gas giants are not all gas. 2  Beneath the heavy atmospheres of these Jupiter and Saturn are layers of molecular hydrogen and liquid metallic hydrogen. 3  Uranus has an icy layer over its solid rock core, and covered with a gaseous atmosphere. 4  Neptune has a water-ammonia ocean for a mantle overlying its rocky core.