Which would be the least effective medium for traveling sound waves?

What is the mass of a 70-kg astronaut floating in space

Suppose you are an astronaut on a spacewalk, far from any source of gravity. You find yourself floating alongside your spacecraft but 10 m away, with no propulsion system to get back to it.

G 2.3 mol of monatomic gas a initially has 4800 j of thermal energy. it interacts with 2.9 mol of monatomic gas b, which initially has 8500 j of thermal energy. part a which gas has the higher initial temperature?

If matter that was still begins to move, then;

What is the potential energy of a rock that weights 100 newtons that is sitting on top of a hill 300 meters high

Why does water form a spherical shape on wax paper?

A person driving a car applies the brakes. This produces friction. True or False

Which of the following BEST describes sports etiquette?

In still water. do waves travel outward in all directions at the same speed? o yes o no

What can a output generator be described as