In a longitudinal wave, what is the direction of the disturbance relative to the wave motion?

Classify each of the following as a physical change or a chemical change. a) grinding glass: b) rusting of iron: c) burning a candle: d) sanding wood:

What is the total surface charge qint on the interior surface of the conductor?

Two boats start together and race across a 60-km-wide lake and back. Boat A goes across at 60 km/h and returns at 60 km/h. Boat B goes across at 30 km/h, and its crew, realizing how far behind it is getting, returns at 90 km/h.

Suppose Galileo dropped a lead ball (100 kilograms) and a glass ball (1 kilogram) from the Leaning Tower of Pisa. Which one hit the ground first? (Assume that there is no air resistance.) A. lead ball B. glass ball C. both at the same time D.

Humans protect themselves from natural disasters by all of the following except dams sunscreen building homes/shelters levees

An ant is crawling along a straight wire, which we shall call the x axis, from A to B to C to D

How does a very heavy object resist sliding sideways when you push hard on it?

A go-cart traveled at 200 meters in 18 seconds. what was the average speed of the go cart?

A cartoon plane with four engines can accelerate at 8.9 meters per second squared

Convert 1087 ft/s to mi/hr