The magnetic field of an electromagnetic wave in a vacuum is bz =(2.4μt)sin((1.05×107)x−ωt), where x is in m and t is in s. you may want to review (pages 889 - 892) . for with math skills, you may want to review: rearrangement of equations involving multiplication and division part a what is the wave's wavelength? express your answer to three significant figures and include the appropriate units.

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)