A train travels 80 kilometers in 2 hours, and then 79 kilometers in 4 hours. What is its average speed?

Where is most of the Earth's freshwater located? A) in lakes B) in rivers C) in oceans D) in glaciers

When cleaning a storage battery you can use a solution of water and ammonia or solution of water and

Why arent insulators allowed in operating rooms

How much elastic potential energy is stored in a bungee cord with a spring constant of 10.0 N/m when the cord is stretched 2.00 m?

How do solar flares interfere with communication and power systems?

The molecules of a substance are moving rapidly in a container. The molecules do not interact with each other. If the container is opened, the molecules will escape from the container. In what phase of matter are the molecules in the container?

Which prefix represents tenths in the metric system?

How does melting And burning sugar follow the law of conservation of mass

A hill has three paths up and sides to a flat summit area that three path Lanks are different but the vertical height from the bottom of the mountain to the top is the same A) which path would be easiest for a car to claim B) not including the

Which one of the following is not an organic compound? Why? CH4 C2H6O Ca0