Atoroid is a solenoid in the shape of a donut (fig. 20-60). use ampére's law along the circular paths, shown dashed in fig 20-60a, to determine that the magnetic field
a) inside the toroid is b= u0 ni/2pir where n is the total number of turns
b)outside the toroid is b=0
c)if not, how does it vary?

What is the final velocity of the initial velocity of 25 and -50?

The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato

Adolphin emits ultrasound at 100khz and uses the timing of reflections to determine the position of objects in the water. part a what is the wavelength of this ultrasound? assume that temperature of water is 20 degrees c. answer in cm