What is the wavelength of the longest wavelength light that can be seen with the human eye?

The force a magnet exerts on another magnet, on iron or a similar metal, or on moving charges is an electric force. a magnetic force. proportional to the charge of the magnet. proportional to the mass of the magnet.

What general rule can you write to explain the forces between objects of different mass?

What is the term for the total radiation that is reflected by a surface?

The loudness l of a sound, measured in decibels, is given by l=10log10r, where r is the sound's relative intensity. suppose one person talks with a relative intensity of 10^6 or 60 decibels.

Explain newton's laws of motion and give an example of each

The force of attraction between two oppositely charged pith balls is 5.3 * 10-6 newtons. If the charge on the two objects is 6.7 * 10-9 coulombs, what is the distance between the two charges? (k = 9.0 * 109 newton·meter2/coulombs2)

To describe velocity you need to know?

Mohammed made a chart to list examples and nonexamples of projectile motion. Which best completes the chart? a - a football thrown in the airb - a kite flying on a stringc - a golf ball rolling off a table d - water spraying from a fountain

Halley's Comet appears around the sun about once every 76 years. It passes through the part of its orbit nearest the sun in just a few months but then moves out to great distances and takes more than half a century for the rest of its orbit.

In order to hike around a portion of Lake Allatoona, a tour guide determines that he must take his group 150 m east, 60 m north, then 75 m west.