Use the drop-down menus to explain how noise cancellation works.

Waves with similar

are created to interfere with unwanted sound waves. The

wave overlap with the troughs of the other wave, causing the two waves to cancel out each other.

of one

Which substance is important in making plastics?

A horizontal 810-N merry-go-round of radius 1.40 m is started from rest by a constant horizontal force of 55 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-go-round after 2.0 s. (Assume it is a solid cylinder.

You are walking outside when a bug flies right into your eye. You immediately blink and try to get it out. The next time you go out, another bug flies into your eye. Then it happens a third time.

In the unsaturated zone, the pores of the soil are totally filled with water. T or F

What is the specific heat capacity of graphite if it requires 266 j to raise the temperature of 15 grams of graphite by 25°c?

if 100 grams is equal to 1 newton of force, and the water displaced by an object would have a mass of 40 grams, what is its buoyant force on that object?

A charge if 2 nC is placed 10cm to the right of a conducting sphere with a diameter of 2 cm. A charge of 5 nC is placed 10 nC to the left of the same sphere. determine the charge at the center of the sphere.

1) How is chemical energy transformed into potential energy?

A double-paned window has two glass panes separated by a layer of air. Why is air, rather than glass, used to fill this space?

To determine waves frequency you must know the what