The ancient indian game of chaturanga, from which the modern game of chess was derived, was played on a board with 64 squares. a certain folktale tells the story of a raja who promised a reward of one grain of rice on the first square of the board, two grams on the second square, four on the third, and so on, doubling the number of grains on each successive square.

Pl asaaap ! match the term to the correct description. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. movement that is like a t transfers energy from one location to another 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.