Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of 2.50 mW. If such a laser beam is projected onto a circular spot 7.00 mm in radius, what is its intensity

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

Current from a charged capacitor lights a bulb. as time goes on the brightness of the

Smallest intensity of a stimulus that you can detect 50 percent of the time is