A 340 hertz sound wave travels at the speed of sound in air with a wavelength of

Apositive rod is placed to the left of sphere a, and the spheres are separated. which best describes the spheres? sphere a is negative and sphere b is positive because protons from sphere a are attracted to the rod and move to sphere b. sphere a is negative and sphere b is positive because electrons from sphere b are attracted to the rod and move to sphere a. sphere a is positive and sphere b is negative because electrons from the rod move to sphere b and protons then move to sphere a. sphere a is positive and sphere b is negative because protons move from sphere b to the rod and also to sphere a.

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

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