Mass of 25 kg and a KE of 450 J. Two kids are playing tag. The first kid is running at an unknown speed chasing the other. The first kid has
How fast is the first kid running?
answer =

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?