If a wave has amplitude of 0.2 meters a wavelength of 0.5 meters and a frequency of 32 hz at what speed is it moving

1, 6.4 m/s
2, 16 m/s
3, 32.5 m/s
4, 32.2 m/s

Aparticle with mass 1.81×10−3 kg and a charge of 1.22×10−8 c has, at a given instant, a velocity v⃗ =(3.00×104m/s)j^. what are the magnitude and direction of the particle’s acceleration produced by a uniform magnetic field b⃗ =(1.63t)i^+(0.980t)j^?

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?