An unstable atomic nucleus of mass 17.0 3 10227 kg initially at rest disintegrates into three particles. One of the particles, of mass 5.00 3 10227 kg, moves in the y direction with a speed of 6.00 3 106 m/s. Another particle, of mass 8.40 3 10227 kg, moves in the x direction with a speed of 4.00 3 106 m/s. Find (a) the velocity of the third particle and (b) the total kinetic energy increase in the process.

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

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?

How is science controlled by the governerment