Which wave interaction is responsible for echoes? O A. Diffraction
B. Interference
C. Reflection
D. Refraction

True or false graphs must include scales that increase by the same amount

A6.0-μf air-filled capacitor is connected across a 100-v voltage source. after the source fully charges the capacitor, the capacitor is immersed in transformer oil (of dielectric constant 4.5). how much additional charge flows from the voltage source, which remained connected during the process?

The dominant wavelength of energy emitted by the sun is