What wave is a wave in which the vibration of the medium is parallel to the direction the wave travels.?

Have you heard an ambulance, police car, or fire truck recently? Did you notice that the pitch of the siren changed as it approached you and then again as it moved away? What concept explains this change or shift in sound waves?

Two bars are conducting heat from a region of higher temperature to one of lower temperature. The bars have identical lengths and cross-sectional areas, but are made from different materials.

Why does air at 75% relative humidity and 30°c make your skin feel stickier than air at 75% relative humidity at 10°c

What is Energy? A.) The ability to do work. B.) force*Distance C.) Force D.) Chemical Change

Why do objects in orbit appear to be weightless?

How much more ground motion is produced by an earthquake of magnitude 7.0 than by an earthquake of magnitude 4.0?

What evidence is there of life in a mini habitat?

A hole is drilled to the center of the earth and a ball is dropped into it. When the ball is at the earth's center, compared with their respective values at the earth's surface,

What is the development of static?

Methane gas absorbs red light, and methane clouds reflect blue light, giving Uranus and Neptune their distinctive blue colors. Why do Uranus and Neptune have methane clouds, but Jupiter and Saturn do not