daisyyyyyyy daisyyyyyyy

11-10-2015
Physics

contestada

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

Respuesta :

11-10-2015

"Hertz" is the unit of reciprocal time, "per second".

"30,000 per second" means "30,000 Hertz".

Answer Link

Otras preguntas

What is 190 x 900 + 1000

recruited from the local christian population in the balkans, the janissaries were __________ a. a guerrilla army that sought to drive out the ottoman turks. b.

by selling old CDs Sarah has a store credit for $153. A new CD costs $18. What are the possible numbers of new CDs Sarah buy write and solve an inequality

what constraint of life in England made it attractive for many people to move to the colonies

0.87 written as fraction

Susan enlarged a rectangle with a height of 7 cm and length of 14 cm on her computer. The length of the new rectangle is 21 cm. Find the height of the new recta

sorry now I I'm at the back page these type of questions they are way too hard for me help me please

why do people have low self esteem

At a warehouse, boxes of merchandise are placed on shelves in stacks that are 7 boxes high. If each box is 4 3/5 inches in height, how tall is the stack of box

why do people have low self esteem