In a certain cyclotron a proton moves in a circle of radius 0.740 m. the magnitude of the magnetic field is 0.960 t. (a) what is the oscillator frequency? (b) what is the kinetic energy of the proton?

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?