In the military, night vision goggles are used to pull off secret missions into areas that are very dangerous. for this reason, the soldiers try to infiltrate at night so they can't be seen. thermal-imaging devices are often used as well to locate people on these highly secretive missions. what type of electromagnetic radiation is being utilized?

How can waves travel through ground?

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90