Explain the theory and practice of two methods of measuring astronomical distances that are based upon different physical principals?

Each part and area of the ear have specific functions in the hearing process. In which of the following parts of the ear are sound waves changed into a signal the brain can understand?

What is the acceleration of a 10.5 kg mass pushed by a 50.5 n force

What are the properties of matter broken into

When you observe a physical property the substance

Gwendolyn has a mass of 17 kg. she is riding her scooter at 1.15 m/s to the right when she runs into maya. maya has a mass of 13 kg and is standing on her scooter but not moving. when they collide, the girls grab onto each other and move together.

Burning involves a chemical change. true or false

What is the fate of the universe knowing that heat flow from hot to cold until there is equilibrium of temperature?

Limestone chips dissolve after they are placed in a beaker of dilute acid. Which geologic process is this most similar to?

In air an object weighs 15N. when immersed in water it weighs 12N. when immersed in another liquid it weighs 13N. determine the density of d object and that of d other liquid

You wash the dishes. when you let the water down the drain, where is the water flowing the fastest?