What is the closest star that could go supernova?

What makes up everything in the universe name 2 properties of all?

The second law of motion is also known as

Newton discovered that gravity behaves differently in space than it does on Earth. true or false?

Difference between force and acceleration

Does red light or blue light have a longer wavelength? how do you know?

If argon could exist as a solid, what would best represent the speed through solid argon?

An atom of sodium has a larger mass than an atom of neon. How is this possible when neon has so many more valence electrons? What particles make up most of the mass of an atom? What takes up most of the volume of an atom?

Sara takes a 40-minute bus ride from her home to her grandparents' home, which is 8 km away. What is the average speed of the bus?

Power is equivalent to the energy released divided by the time taken to release the energy. true false

Consider the following four cases of a person applying force to an object: (1) a force of 5 N directed parallel to the floor is pulling a box over a distance of 1 m.