The speed of light is about 300,000,000 m/s or 186,000 miles/second. what parts of the electromagnetic spectrum move at this speed?

Every electromagnetic wave moves at the same speed in vaccum.

Explanation: The given speed of light is the speed of light in vacum, and it is the same for every electromagnetic wave (visible light, infrared, ultraviolet, etc)

So every part of the electromagnetic wave spectrum moves at this speed.

If we where in a different medium (any thing that is not vacum) the velocity of the light is slightly smaller, and even is different for diferent frequencies.

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation: