Which technology contains at least one permanent magnet? A. An electric generator
B. A gasoline engine
C. An electrical circuit
D. An electromagnet

What is the relationship between the wavelength of a wave and it's energy?

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction