What property of a wave remains unchanged when a wave enters a different medium?

Two sheets of polarizing material are placed such that their polarizing axes are 90° to each other and no light passes through the combination.

A 1000-watt microwave oven takes 90 seconds to heat a bowl of soup. How many joules if energy does it use?

What is the mass of a baseball thrown at 25 m/s resulting in a momentum of 10 kg·m/s?

Why can gamma rays pass threw or penetrate solids?

Instructions:Select the correct answer. What type of acceleration does an object moving in a circular path with constant speed experience? It will experience centripetal acceleration. It will experience constant acceleration.

Sheila lives in the seashore community of Beachview. At 6:00 a. m. one morning, she noticed that the local ocean water was at high tide. At approximately noon that same day, she noticed the water was at low tide.

How many pounds are in 427.06 g? 1 gram = 2.20 * 10-3 lb A. 194,118 lb B. 194.12 lb C. 939 lb D. 0.939 lb

Identify the possible source of earth's magnetic field

A nurse applies a horizontal force of 147 N on a bed that has a mass of 152 kg, The magnitude of the normal force acting on the bed is .967 N 5.00 N 1440 N 1490 N

What do scientists use to look at cells, tissues, and small organisms to see how their biological processes differ in space? vibration flybys airlock microgravity