What is not needed for a charge to flow through a conducting wire?

How do waves change as they approach the shore? apex?

Two brothers are digging a drainage ditch for a french drain around their home. The ditch is to be 2 feet deep, 1 foot wide, and 40 feet long. The older brother can dig the ditch in 14 hours. The younger brother can dig the ditch in 17 hours.

Which lists the correct steps that occur when using a diffraction grating to bend light?

A helicopter flies 250 km on a straight path in a direction 60° south of east. The east component of the helicopter's displacement is

What is a mycorrhiza

When light bounces off a surface, which component will be reflected more - the component that is parallel to the surface, or the component that is perpendicular to the surface, and why?

What is 18 degrees celsius in fahrenheit?

A small object moves along the x-axis with acceleration ax (t) = - (0.0320m/s3) (15.0s-t). At t = 0 the object is at x = - 14.0 m and has velocity v0x = 8.90 m/s. What is the x-coordinate of the object when t = 10.0 s?

Nitrogen and Hydrogen react to form ammonia (NH3). The reaction looks like this: Ammonia What is the ratio of nitrogen atoms to hydrogen atoms in ammonia? 1 to 2 1 to 3 2 to 1 3 to 1

Place the following types of electromagnetic radiation in order of increasing wavelength. ultraviolet light gamma rays radio waves Place the following types of electromagnetic radiation in order of increasing wavelength.