An ultrasound wave vibrates 30,000 times per second. what is the frequency

What agency approves food packaging

Which of the following is a feature of the sun's radiation? A. It cannot travel through air. B. It cannot travel through vacuum. C. It is made up of rays of the same frequency. D. It is made up of rays of different wavelengths.

Ultraviolet and infrared radiations are members of the electromagnetic spectrum what are the two properties that makes them different?

Which explains why a sealed calorimeter is a closed system?

A transverse wave is traveling on a string. The displacement y of a particle from its equilibrium position is given by y = (0.021 m) sin (29t - 2x). Note that the phase angle (29t - 2.0x) is in radians, t is in seconds, and x is in meters.

How does folding change rock layers

Why is mass movement more common after a heavy rainfall?

Order the colors of the rainbow starting with the color that is bent the least to the color that is bent the most (when it passes through a prism). Question 1 options: yellow blue indigo orange green red violet

Find the unit vector that has the same direction as the vector v = _12j

Why isn't the size of something considered a physical property?