Why doesn't an electromagnetic wave move as fast through a solid as it would a gas

Bumper cars A and B undergo a collision during which the momentum of the combined system is conserved. Which equation (s) correctly states the principle of conservation of momentum? 1. P⃗ A, i+P⃗ B, i=P⃗ A, f+P⃗ B, f 2.

An electrician is creating a wiring plan for a small house. He needs to create a plan that will allow the homeowners to turn off lights in one room without turning the light off the lights in another what should he do to assure that each room's

One difference between mechanical and sound waves is

A pulley of diameter 49.0 in revolves at 1860 rpm. What is the diameter of a second pulley, in inches, if it rotates at 620 rpm?

What is the wavelength of an earthquake wave if it has a speed of 5 km/s and a frequency of 10 Hz?

Why should scientists write reports and give oral presentations of the steps and results of their in investigations?

Which of these rocks are formed by volcanic activity? select the two correct answers. a. marble b. basalt c. limestone d. granite e. sandstone

Which source is most likely an authority on the subject? Dr. Vale, a pediatrician, discusses electrical circuitry on her home-improvement website. Jonah, an amateur cook, teaches his son how to make the best grilled cheese sandwiches.

What methods can be used to break down substances into elements

8. A gas is contained in a horizontal piston-cylinder apparatus at a pressure of 350 kPa and a volume of 0.02 m3. Determine the work done by the piston on the gas if the cylinder volume is increased to 0.15 m3 through heating.