The voltage in a house is measured to be 122.5 V. What is the current drawn by a 75.0-W light bulb?
Question 2
The laws of refraction and reflection are the same for sound as for light. The speed of sound in air is 340 m/s and in water it is 1510 m/s. If a sound wave approaches a plane water surface at an angle of incidence of 12.0, what is the angle of refraction?