KArbvikaa8y KArbvikaa8y

13-11-2016
Physics

contestada

How can a megaphone used by a cheerleader allow people on the opposite side of a field to hear her better?

Respuesta :

yolandaam yolandaam

13-11-2016

The megaphone is cupping the area around her mouth and it is like with your hands, if you cover around them the noise will be louder. It is because it is hollow and there isn't anything to block the noise through the megaphone.

Answer Link

Otras preguntas

When you add the prefix MIS- to the word manage what is the meaning of the new word

*I need help on number 5 :(

Which of the following describes the benefits of using concentrated animal feeding operations for meat production? I. Lower costs II. Larger animals III. Less l

the signal word yet is used only in explaining sequence

Complete the steps to solve for x. 1 5 X- 6*-5* = 19 5 x = 19 6 х = 19 30

In preparing a computer program, the programmer should FIRST * a. plan the solution b. code the progress c. prepare program documentation d. define the problem

A swimming coach needs to choose a team for a relay race. The coach must select 4 of 6 available swimmers and put them in a strategic sequence. How many unique

what was one effect of santa annas rise to power in the 1830s

I need help with math question?

A student uses a spring (with a spring constant of 180 N/m) to launch a marble vertically into the air. The mass of the marble is 0.004 kg and the spring is com