What do all waves do? O Move a medium side to side. O Cause energy to move from one place to another. Make people stand up and sit down, going around a stadium. Say good bye to people. What is the difference between Mechanical waves and Electromagnetic waves? Mechanical waves are all transverse waves like most Electromagnetic waves. O Mechanical waves are all longitudinal waves like most Electromagnetic waves. Mechanical waves need a medium/material to move through, Electromagnetic waves don't need a medium/material to move through. Electromagnectic waves are all longitudinal waves like many Mechanical waves.

www WiFi (microwaves) waves travel 100m in the x-direction from a transmitter to a computer. The maximum electric field at the computer is 77.5mV/m and points in the z-direction. The frequency of the WiFi system is 2.4GHz. a. At the computer, the magnetic field points in what direction? b. At the computer, what is magnitude of the maximum magnetic field? c. How much power is being transmitted by the WiFi transmitter? d. wwwmm How much time does it take for waves to travel from the WiFi transmitter to the computer?

What is true about how Electromagnetic and Mechanical waves travel? Electromagnetic waves must have a medium to move through. zlet red pe Both Mechanical and Electromagnetic waves can move through m; mec vacuum. aves? Electromagnetic waves do not require a medium to move through. Mechanical waves do not require a medium to move through. cksters 4:44 PM 3/31/2021 PrtSc Insert Delete 144 F8 F9 F10 F11 F12 * Backspace Num Lock 8 9. 8. 9. { Home PgUp 4. K Enter 3 1 Shift End PgDn PgUp + |I = - V 图

An electromagnetic wave is allowed to reflect from a mirror in a measurement of radiation pressure.  If Erms is doubled while the wave frequency is cut in half, then the radiation pressure will  a. remain the same.  b. quadruple. c. double. d. be cut in half.

An ideal polarizing sheet transmits 90% of the incident partially polarized light. What percentage of the transmitted light is polarized? O a. 100% O b. Between 80% and 100% O c. between 0% and 10% O d. Between 80% and 90% O e. Between 0% and 20%