What is the source of all wave motion

Why are you able to observe the Doppler effect on earth with sound waves but not with light waves?

Does heating a cup of Water allow it to dissolve more sugar? Constant

If you were able to measure the motion of all particles of a sample and you used this data to find the average you would actually be measuring what

An automobile with tires that have a radius of 0.260 m travels 76000 km before wearing them out. How many revolutions do the tires make, neglecting any backing up and any change in radius due to wear?

What human practices are destroying the rain forest?

A space probe produces a radio signal pulse. If the pulse reaches Earth 12.3 seconds after it is emitted by the probe, what is the distance from the probe to Earth?

Do substances that heat up quickly have high or low specific heat capacity?

A substance has a specific heat of 0.870 J/g°C. It requires 2,000.0 joules to increase the temperature of 10.0 grams of the substance from its original temperature to its final temperature. By how many degrees did the substance increase? A 87.

How many earth years does it take mars to orbit the sun

Which represents a system that is almost completely closed?