32. Electromagnetic Waves
Intro to Electromagnetic (EM) Waves
32. Electromagnetic Waves Intro to Electromagnetic (EM) Waves
3PRACTICE PROBLEM
An incredibly bright LED spotlight shines upwards onto a lightweight, reflective aluminum sheet of mass m. If the sheet perfectly reflects all the light, calculate the minimum power P needed from the LED spotlight to keep the sheet floating in the air.
An incredibly bright LED spotlight shines upwards onto a lightweight, reflective aluminum sheet of mass m. If the sheet perfectly reflects all the light, calculate the minimum power P needed from the LED spotlight to keep the sheet floating in the air.