A police siren sounds different as it comes close to you than when it moves away from you. what term explains how this happens?

a. diffraction

b. the doppler effect

c. rarefaction

d. shockwaves

A fuse in an electric circuit is a wire that is designed to melt, and thereby open the circuit, if the current exceeds a predetermined value. Suppose that the material to be used in a fuse melts when the current density rises to 440 A/cm2.

How many neap tides and spring tides are there every month

The table shows information about the moons of Mars. Moon Orbital Period (days) Average Distance from Mars (km) Phobos 0.319 9378 Deimos? 23,459 What is the orbital period of Deimos? A. 0.0806 days B. 0.798 days C. 1.26 days D. 1.59 days

Complete the following equation that represents the complete combustion of hexane in a car engine. C6H14 + O2

How do newton's laws apply to an egg drop

What is it called when you connect an object to earth with a conductor

Why is venus the hottest planet in the solar system

Which of the following is an example of an electromagnetic wave? A. ripples on a lake B. the honking of a car horn C. the light from a neon sign D. aftershocks from an earthquake

How fast can we travel in space with current technology?

How would the tides on earth be different if the moon revolved around the earth in 15 days instead of 30 days