What is the cassini division of saturn's rings?
a. the widest ring of saturn, located between two large ring gaps
b. the most opaque ring of saturn, made of highly reflective ice particles
c. the imaginary circle marking the halfway point of saturn's rings
d. a large gap, visible from earth, produced by an orbital resonance with the moon mimas
e. a dark ring, visible from earth, composed of dark, dusty particles

Wo audio speakers are placed on a vertical rail. speaker a is placed at head-level while speaker b is place at some variable height, \delta yδy, above speaker a. both speakers receive simultaneous input from a sine-wave generator so the speakers each produce a pure sinusoidal sound wave with a wavelength of 0.531 meters. calculate the lowest height that speaker b can be placed above speaker a to produce a minimum of sound heard by person standing \delta x = 7.86δx=7.86 meters directly in front of speaker a.

Which terms describe the purpose of antennas on devices that use radio waves? transmit and receivemodify and amplifyamplify and receivemodify and transmit

Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.