The number of times that a wave vibrates in unit is called

the water in the buffalo river flows at an average speed of 5 km/hr. if you and a friend decide to canoe down the river a distance of 16 kilometers, how many hours and minutes will it take? need the hr and the min

The Doppler Effect means that all observers of a moving wave source detect the same wave frequency. True or False

Compare and contrast speed, velocity, and acceleration. Why do their differences matter?

What is the rocks potential energy when it is 2000 meters above the ground?

Faina says that an object cannot be in mechanical equilibrium when only a single force acts on it. do you agree or disagree? explain.

Tsunami waves are almost the same as ripples caused by throwing a rock into a pond. what is the major difference between the two?

A hot air balloon pilot wants the balloon to quickly rise several feet higher so it will be above some trees in the distance. Which best explains how the pilot can make the balloon rise? 1.

The density of pine is generally about 0.5 g/cm3. What is the mass of a 800 cm3 piece of pine Download pdf

The heat energy released or absorbed by a chemical reaction is generally determined by the difference between the energy that

A woman with a mass of * kg is standing on the rim of a large disk that is rotating at an angular velocity of 0.550 rev/s about an axis through its center. the disk has a mass of * kg and a radius of * m.